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WELCOME TO THE ASTRONOMY CLUB @ YORK UNIVERSITY

Are you fascinated by the stars and the mysteries of the universe, own a telescope or wish to get one? Join the Astronomy Club! The Astronomy Club is open to all members of the York community and offers a variety of fun and interactive ways for professional and amateur astronomy enthusiasts alike, to celebrate a common interest in the cosmos. Astronomy is a science that has helped to shape human culture over the ages and has influenced our imaginations throughout history, and can be enjoyed by everyone. We thoroughly encourage the distribution of astronomical resources and the education of astronomy to the general public.

News Aggregate

May 21, 2014: Jupiter's Great Red Spot is Shrinking

Jupiter's trademark Great Red Spot -- a swirling anti-cyclonic storm larger than Earth -- has shrunk to its smallest size ever measured. According to Amy Simon of NASA's Goddard Space Flight Center in Greenbelt, Maryland, recent NASA Hubble Space Telescope observations confirm the Great Red Spot now is approximately 10,250 miles across, less than half the size of some historical measurements. Astronomers have followed this downsizing since the 1930s.

Full Article at science.nasa.gov

March 18, 2014: First direct evidence of cosmic inflation (Update)

Almost 14 billion years ago, the universe we inhabit burst into existence in an extraordinary event that initiated the Big Bang. In the first fleeting fraction of a second, the universe expanded exponentially, stretching far beyond the view of our best telescopes. All this, of course, was just theory.Researchers from the BICEP2 collaboration today announced the first direct evidence for this cosmic inflation. Their data also represent the first images of gravitational waves, or ripples in space-time. These waves have been described as the "first tremors of the Big Bang." Finally, the data confirm a deep connection between quantum mechanics and general relativity.

Full Article at phys.org

January 25, 2014: Nearest supernova in 27 years explodes in M82 galaxy

A supernova has been spotted in the constellation Ursa Major (between the Big and Little Dipper in the night sky) in the M82 galaxy (affectionately known as the cigar galaxy) by a team of students at University College London. The discovery was posted on the Central Bureau's Transient Object Confirmation Page which led to follow-up observations by other teams around the world. It's real, and not only is it bright enough for amateur astronomer's to view, but it's the closet known supernova explosion since 1987.

Full Article at phys.org

January 7, 2014: A pulsar discovered in a unique triple star system

An international team of astronomers using the Green Bank Telescope (GBT) has discovered a pulsar that is orbited by two white dwarf stars. Pulsars are rapidly rotating neutron stars that can be used like precision astronomical clocks. This is the first time that astronomers have found a triple star system that contains a pulsar, and the discovery team has used the pulsar’s clocklike properties to turn the system into an unparalleled precision laboratory for studying the effects of gravitational interactions.

Full Article at astronomy.com

December 30, 2013: 6 Biggest Space Science Discoveries of 2013

The year 2013 saw a wealth of discoveries, insights, and milestones that advanced the fields of astronomy and other space sciences. From extrasolar planets to extraterrestrial neutrinos, these finds have made sure that 2013 has been an unforgettable year.

Full Article at space.com

December 12, 2013: Europa Erupts! Possible Geyser of Water Seen on Jupiter’s Moon

Using the Hubble Space Telescope, astronomers have seen evidence of a massive geyser of water erupting from the surface of Jupiter’s icy moon Europa. This plume of water extends as high as 200 kilometers (about 125 miles) above the surface.

Full Article at slate.com

December 4, 2013: Massive black hole duo: Possible sighting by WISE

Astronomers have spotted what appear to be two supermassive black holes at the heart of a remote galaxy, circling each other like dance partners. The incredibly rare sighting was made with the help of NASA's Wide-field Infrared Survey Explorer, or WISE.

Full Article at phys.org

November 26, 2013: Quick ISON Update: Is It Still There?

Comet C/2012 S1 (ISON) has been full of surprises; it’s been fulfilling our hopes of being a bright and spectacular object. Along with that hope of it being wonderful is also the cautious fear that it might disintegrate as it passes the Sun. Why?

Full Article at slate.com

November 9, 2013: This quasar should not exist -- and yet it does

Astronomers from York University in Canada have identified an undocumented type of quasar where gas appears to be getting sucked into a black hole. This may not sound surprising, but current theories say that isn't supposed to happen. Quasars are hyperactive and extremely bright discs of hot gas that surround supermassive black holes. They're also known as galactic nucleuses. The Milky Way has one at its center. All the junk that's rapidly spinning down the drain hole forms a compact disc with a radius that's larger than Earth's orbit around the Sun and a temperature that's hotter than the surface of a star. They are so unbelievably bright that they can actually be seen across the observable universe, making them one of the most luminous objects known to science.

Full Article at io9.com

November 5, 2013: Physicists find black holes in globular star clusters, upsetting 40 years of theory

A Texas Tech University astrophysicist was part of a team of researchers that discovered the first examples of black holes in globular star clusters in our own galaxy, upsetting 40 years of theories against their possible existence.

Full Article at phys.org

October 23, 2013: Universe's most distant galaxy discovered

Texas A&M University and the University of Texas at Austin may be former football rivals, but the Lone Star State's two research giants have teamed up to detect the most distant spectroscopically confirmed galaxy ever found—one created within 700 million years after the Big Bang.

Full Article at phys.org

October 15, 2013: Comet ISON

Two astronomers found Comet ISON (C/2012 S1) glowing dimly at magnitude 18.8 on September 21, 2012. On November 28 of this year, ISON will lie closest to the Sun — a scant 680,000 miles (1.1 million kilometers) from its surface. At that time, current predictions suggest, it may appear 500 billion times as bright as it glowed at discovery.

Full Article at astronomy.com

September 30, 2013: Cassini spacecraft finds plastic ingredient on Saturn's moon Titan

NASA's Cassini spacecraft has detected propylene, a chemical used to make food-storage containers, car bumpers and other consumer products, on Saturn's moon Titan. This is the first definitive detection of the plastic ingredient on any moon or planet, other than Earth.

Full Article at phys.org

September 30, 2013: Cygnus arrives at the International Space Station

A week after its original approach date, Orbital Sciences’ commercial cargo craft Cygnus has arrived at the International Space Station. The Expedition 37 crew captured Cygnus with the Canadarm2 at 7 a.m. EDT September 29. Cygnus launched September 18 aboard an Antares rocket from NASA’s Wallops Flight Facility in Virginia.

Full Article at astronomy.com

September 14, 2013: A message from beyond the stars: NASA's Voyager 1 spacecraft sends first transmission after leaving Earth's solar system

This is the incredible sound recording beamed back to Earth from Voyager 1 as it crossed a new frontier, becoming the first spacecraft ever to leave the solar system. The rising tones NASA observed are made by the vibration of dense plasma or ionised gas and were captured by the probe's plasma wave instrument. Speaking in a news conference, Don Gurnett, principle investigator for the Voyager plasma wave investigation, said: 'When you hear this recording, please recognise that this is an historic event. It's the first time that we've ever made a recording of sounds in interstellar space.'

Full Article at dailymail.co.uk

September 14, 2013: Hubble Uncovers Largest Known Population of Star Clusters

NASA's Hubble Space Telescope has uncovered the largest known population of globular star clusters, an estimated 160,000, swarming like bees inside the crowded core of the giant grouping of galaxies Abell 1689. By comparison, our Milky Way galaxy hosts about 150 such clusters.

Full Article at hubblesite.org

September 4, 2013: Dark Energy Survey begins five-year mission to map southern sky in tremendous detail

Tonight, as the sun sinks below the horizon, the world's most powerful digital camera will once again turn its gleaming eye skyward. Tonight, and for hundreds of nights over the next five years, a team of physicists and astronomers from around the globe will use this remarkable machine to try to answer some of the most fundamental questions about our universe.

Full Article at phys.org

September 4, 2013: NASA's Hubble Sees a Cosmic Caterpillar

The light-year-long knot of interstellar gas and dust, seen in a new Hubble photo, resembles a caterpillar on its way to a feast. But the meat of the story is not only what this cosmic caterpillar eats for lunch, but also what's eating it. Harsh winds from extremely bright stars are blasting ultraviolet radiation at this "wanna-be" star and sculpting the gas and dust into its long shape.

Full Article at sciencedaily.com

September 2, 2013: September provides your first peek at Comet ISON

As of today, astronomers still don’t know if Comet ISON (C/2012 S1) will put on a good show or a potentially historic one. Either way, many amateur astronomers are keen to follow it as it brightens. Join them as it comes within range of 8-inch telescopes in early September. And by month’s end, you might be able to spot it through a 4-inch scope.

Full Article at astronomy.com

September 2, 2013: The world's first interferometric image at 500 GHz with ALMA Band 8 receivers

ALMA opens another window to the universe in the 500 GHz frequency band. Astronomers successfully synthesized the distribution of atomic carbon around a planetary nebula NGC 6302 in test observations with the ALMA Band 8 receiver, developed by the National Astronomical Observatory of Japan (NAOJ). This is the first 500 GHz band astronomical image captured by a radio interferometer with unprecedentedly high resolution.

Full Article at phys.org

August 30, 2013: Astronomers discover why supermassive black holes consume less material than expected

Using NASA's super-sensitive Chandra X-ray space telescope, a team of astronomers led by Q. Daniel Wang at the University of Massachusetts Amherst has solved a long-standing mystery about why most super massive black holes (SMBH) at the centers of galaxies have such a low accretion rate—that is, they swallow very little of the cosmic gases available and instead act as if they are on a severe diet.

Full Article at phys.org

August 30, 2013: “Trojan” asteroids in far reaches of solar system more common than previously thought

University of British Columbia (UBC) astronomers have discovered the first Trojan asteroid sharing the orbit of Uranus, and they believe 2011 QF99 is part of a larger-than-expected population of transient objects temporarily trapped by the gravitational pull of the solar system’s giant planets.

Full Article at astronomy.com

August 26, 2013: A brighter method to determine surface gravity of distant stars

Astronomers have found a clever new way to slice and dice the flickering light from a distant star in a way that reveals the strength of gravity at its surface.

Full Article at phys.org

August 26, 2013: Star Birth Drama Captured by Giant Radio Telescope (Photos)

A huge radio telescope in Chile has captured dazzling new views of a baby star lighting up an interstellar cloud with jets of gas streaking through deep space at record-breaking speeds.

Full Article at space.com

August 20, 2013: New 'Nova' Star Explosion Spotted in Night Sky: How to See It

A new star explosion, called a nova, has flared up in the night sky, and it is fairly easy to spot with binoculars — and potentially even the naked eye — by stargazers with clear weather and dark skies. You can even see the new nova online tonight in a skywatching webcast.

Full Article at space.com

August 11, 2013: Hubble finds source of Magellanic Stream

Astronomers using the NASA/ESA Hubble Space Telescope have solved the 40-year-old mystery of the origin of the Magellanic Stream, a long ribbon of gas stretching nearly halfway around the Milky Way. New Hubble observations reveal that most of this stream was stripped from the Small Magellanic Cloud some two billion years ago, with a smaller portion originating more recently from its larger neighbour.

Full Article at phys.org

August 11, 2013: Astronomers image lowest-mass exoplanets around a Sun-like star

Using infrared data from the Subaru Telescope in Hawaii, an international team of astronomers has imaged a giant planet around the bright star GJ 504. Several times the mass of Jupiter and similar in size, the new world, dubbed GJ 504b, is the lowest-mass planet ever detected around a star like the Sun using direct imaging techniques.

Full Article at astronomy.com

August 11, 2013: If we landed on Europa, what would we want to know?

Most of what scientists know of Jupiter’s moon Europa they have gleaned from a dozen or so close flybys from NASA’s Voyager 2 spacecraft in 1979 and NASA’s Galileo spacecraft in the mid-to-late 1990s. Even in these fleeting, paparazzi-like encounters, scientists have seen a fractured, ice-covered world with tantalizing signs of a liquid water ocean under its surface. Such an environment could potentially be a hospitable home for microbial life. But what if we got to land on Europa’s surface and conduct something along the lines of a more in-depth interview? What would scientists ask? A new study lays out scientists’ consensus on the most important questions to address.

Full Article at astronomy.com

August 7, 2013: "Einstein's Prediction" --Proof of Gravitational Waves' Existence Imminent

Nearly a century after Albert Einstein first predicted the existence of gravitational waves, a global network of gravitational wave observatories has moved a step closer to detecting the faint radiation that could lead to important new discoveries in our universe. Gravity waves are ripples in space generated by extreme cosmic events such as colliding stars, black holes, and supernova explosions, which carry vast amounts of energy at the speed of light.

Full Article at dailygalaxy.com

July 29, 2013: ALMA sheds light on mystery of missing massive galaxies

New observations from the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile have given astronomers the best view yet of how vigorous star formation can blast gas out of a galaxy and starve future generations of stars of the fuel they need to form and grow. The dramatic images show enormous outflows of molecular gas ejected by star-forming regions in the nearby Sculptor Galaxy. These new results help to explain the strange paucity of massive galaxies in the universe.

Full Article at Astronomy.com

July 25, 2013: Blackbody radiation induces attractive force stronger than gravity

Perfectly non-reflective objects, called blackbodies, produce blackbody radiation when at a uniform temperature. Although the properties of blackbody radiation depend on the blackbody's temperature, this radiation has always been thought to have a net repulsive effect. Now in a new study, scientists have theoretically shown that blackbody radiation induces a second force on nearby atoms and molecules that is usually attractive and, quite surprisingly, even stronger than the repulsive radiation pressure. Consequently, the atoms and molecules are pulled toward the blackbody surface by a net attractive force that can be even stronger than gravity. The new attractive force—which the scientists call the "blackbody force"—suggests that a variety of astrophysical scenarios should be revisited.

Full Article at phys.org

July 25, 2013: Snow Lines Around a Young Star

A group of researchers has finally found the perfect snow line. But rather than wielding skis and snowboards, they've been using a giant array of radio antennas—called ALMA—pointed at the cosmos. On Earth, a snow line is where snow and ice are present on the ground year-round. In space, it's where compounds like water or carbon monoxide (CO) freeze on to miniscule particles of dust in the disk of material surrounding young stars.

Full Article at nationalgeographic.com

July 18, 2013: Earth's gold came from colliding dead stars

We value gold for many reasons: its beauty, its usefulness as jewelry, and its rarity. Gold is rare on Earth in part because it's also rare in the universe. Unlike elements like carbon or iron, it cannot be created within a star. Instead, it must be born in a more cataclysmic event - like one that occurred last month known as a short gamma-ray burst (GRB).

Full Article at phys.org

July 15, 2013: Shedding new light on a dying star

Stars like the Sun can become remarkably photogenic at the end of their lives. A good example is NGC 2392, which is located about 4,200 light-years from Earth. NGC 2392, nicknamed the Eskimo Nebula, is what astronomers call a planetary nebula. This designation, however, is deceiving because planetary nebulae actually have nothing to do with planets. The term is simply a historic relic because these objects looked like planetary disks to astronomers in earlier times looking through small optical telescopes.

Full Article at astronomy.com

July 13, 2013: Space-Time Loops May Explain Black Holes

Physics cannot describe what happens inside a black hole. There, current theories break down, and general relativity collides with quantum mechanics, creating what's called a singularity, or a point at whichthe equations spit out infinities.

Full Article at space.com

July 5, 2013: Novel technique boosts hunt for water on planets around other stars

Using the European Southern Observatory's (ESO) Very Large Telescope (VLT), a team of astronomers have been able to detect the telltale spectral fingerprint of water molecules in the atmosphere of a planet in orbit around another star. The discovery endorses a new technique that will let astronomers efficiently search for water on hundreds of worlds without the need for space-based telescopes. Jayne Birkby of Leiden University presented present the new result today July at the Royal Astronomical Society National Astronomy Meeting in St. Andrews, Scotland.

Full Article at astronomy.com

July 5, 2013: Earth farthest from sun for 2013 on July 5, plus … see Jupiter and Mars

Planet Earth reaches its most distant point from the sun for 2013 on July 5, at 10 a.m. Central Daylight Time in the U.S. (1500 UTC). Plus … you might need binoculars to glimpse the waning crescent moon with Mars and Jupiter before sunrise July 6. Astronomers call our farthest point fromt he sun Earth’s aphelion. Today, we’re about three million miles farther from the sun than we will be six months from now. That’s in contrast to our average distance from the sun of about 93 million miles (150 million km). Looking for Earth’s exact distance from the sun today? It’s at 94,508,959 miles. Last year, on July 4, 2012, the Earth at aphelion was a tiny bit closer, at 94,505,851 miles.

Full Article at earthsky.org

June 27, 2013: NASA's Voyager 1 Explores Final Frontier of Our 'Solar Bubble'

Data from Voyager 1, now more than 11 billion miles (18 billion kilometers) from the sun, suggest the spacecraft is closer to becoming the first human-made object to reach interstellar space. Research using Voyager 1 data and published in the journal Science today provides new detail on the last region the spacecraft will cross before it leaves the heliosphere, or the bubble around our sun, and enters interstellar space. Three papers describe how Voyager 1's entry into a region called the magnetic highway resulted in simultaneous observations of the highest rate so far of charged particles from outside heliosphere and the disappearance of charged particles from inside the heliosphere.

Full Article at jpl.nasa.gov/strong>

June 27, 2013: Three Planets in Habitable Zone of Nearby Star

A team of astronomers has combined new observations of Gliese 667C with existing data from HARPS at ESO’s 3.6-metre telescope in Chile, to reveal a system with at least six planets. A record-breaking three of these planets are super-Earths lying in the zone around the star where liquid water could exist, making them possible candidates for the presence of life. This is the first system found with a fully packed habitable zone.

Full Article at eso.org

June 15, 2013: Trove of Black Holes Discovered in Andromeda Galaxy

Astronomers have discovered 26 new likely black holes in the neighboring Andromeda galaxy — the largest haul of black hole candidates ever found in a galaxy apart from our own.

Full Article at space.com

June 15, 2013: New Kind of Dark Matter Could Form 'Dark Atoms'

The mysterious dark matter that makes up most of the matter in the universe could be composed, in part, of invisible and nearly intangible counterparts of atoms, protons and electrons, researchers say.

Full Article at space.com

June 6, 2013: International Team on Keck Observatory Strengthens Big Bang Theory

An international team of scientists using the most powerful telescope on Earth has discovered the moments just after the Big Bang happened more like the theory predicts, eliminating a significant discrepancy that troubled physicists for two decades. The discovery will be published in the international journal Astronomy & Astrophysics on June 6.

Full Article at keckobservatory.org

June 6, 2013: The origin of the s-star cluster at the galactic center

Scientists Fabio Antonini, of the Canadian Institute for Theoretical Astrophysics, and David Merritt, of the Rochester Institute of Technology, have developed a new theory that explains the orbits of the massive young stars that closely orbit the black hole at the center of the Milky Way.

Full Article at phys.org

June 6, 2013: Kepler stars and planets are bigger than previously thought

In a new study using the NOAO Kitt Peak National Observatory Mayall 4-meter telescope, observations of a large sample of stars with candidate planets identified by the NASA Kepler Mission have revealed that many of the stars, and hence their planets, are actually somewhat larger than originally thought. In addition, the researchers confirm that planets larger than Neptune are more likely to be found orbiting stars that contain more heavy elements (such as iron) than the Sun. Small planets, however, have been discovered around stars both rich and poor in metals.

Full Article at phys.org

June 6, 2013: Astronomers discover light echo from supernova

Astronomers have discovered light echoing off material surrounding a recent supernova explosion, SN 2009ig. The dust and gas that are reflecting the light are so close to the eruption center that it is likely related to the progenitor star. This discovery supports the theory that exploding white dwarfs become unstable from matter donated by large, non-degenerate stars.

Full Article at phys.org

June 6, 2013: Young star suggests our sun was a feisty toddler

If you had a time machine that could take you anywhere in the past, what time would you choose? Most people would probably pick the era of the dinosaurs in hopes of spotting a T. rex. But many astronomers would choose the period, four and a half billion years ago, that our solar system formed. In lieu of a working time machine, we learn about the birth of our Sun and its planets by studying young stars in our galaxy. New work suggests that our Sun was both active and "feisty" in its infancy, growing in fits and starts while burping out bursts of X-rays.

Full Article t phys.org

June 6, 2013: New observations of a 'dust trap' around a young star solve long-standing planet formation mystery

Astronomers using the new Atacama Large Millimeter/submillimeter Array have imaged a region around a young star where dust particles can grow by clumping together. This is the first time that such a dust trap has been clearly observed and modeled. It solves a long-standing mystery about how dust particles in discs grow to larger sizes so that they can eventually form comets, planets and other rocky bodies.

Full Article at phys.org

May 31, 2013: Radiation measured by Curiosity on voyage to Mars has implications for future human missions

Measurements taken by NASA's Mars Science Laboratory (MSL) mission as it delivered the Curiosity rover to Mars in 2012 are providing NASA the information it needs to design systems to protect human explorers from radiation exposure on deep-space expeditions in the future.

Full Article at astronomy.com

May 31, 2013: Swift reveals new phenomenon in a neutron star

Astronomers using NASA’s Swift X-ray Telescope have observed a spinning neutron star suddenly slowing down, yielding clues they can use to understand these extremely dense objects. A neutron star is the crushed core of a massive star that ran out of fuel, collapsed under its own weight, and exploded as a supernova. A neutron star can spin as fast as 43,000 times per minute and boast a magnetic field a trillion times stronger than Earth’s. Matter within a neutron star is so dense that a teaspoonful would weigh about a billion tons on Earth.

Full Article at astronomy.com

May 31, 2013: Detection of the cosmic gamma-ray horizon measures all the light in the universe since the Big Bang

How much light has been emitted by all galaxies since the cosmos began? After all, almost every photon (particle of light) from ultraviolet to far-infrared wavelengths ever radiated by all galaxies that ever existed throughout cosmic history is still speeding through the universe today. If scientists could carefully measure the number and energy (wavelength) of all those photons — not only at the present time, but also back in time — they might learn important secrets about the nature and evolution of the universe, including how similar or different ancient galaxies were compared to the galaxies we see today.

Full Article at astronomy.com

May 31, 2013: NASA radar reveals passing asteroid has its own moon

A sequence of radar images of asteroid 1998 QE2 was obtained on the evening of May 29, 2013, by NASA scientists using the 230-foot (70 meters) Deep Space Network antenna at Goldstone, California, when the asteroid was about 3.75 million miles (6 million kilometers) from Earth, which is 15.6 lunar distances. The radar imagery revealed that 1998 QE2 is a binary asteroid. In the near-Earth population, about 16 percent of asteroids that are about 655 feet (200m) or larger are binary or triple systems. Radar images suggest that the main body, or primary, is approximately 1.7 miles (2.7 kilometers) in diameter and has a rotation period of less than four hours. Also revealed in the radar imagery of 1998 QE2 are several dark surface features that suggest large concavities. The preliminary estimate for the size of the asteroid's satellite, or moon, is approximately 2,000 feet (600m) wide. The radar collage covers a little bit more than two hours.

Full Article at astronomy.com/strong>

May 18, 2013: Huge Rock Crashes Into Moon, Sparks Giant Explosion

The moon has a new hole on its surface thanks to a boulder that slammed into it in March, creating the biggest explosion scientists have seen on the moon since they started monitoring it.

Full Article at space.com

May 13, 2013: Chris Hadfield safely returns to Earth

Astronaut Chris Hadfield, the first Canadian to command the International Space Station, has safely returned to Earth after almost five months in orbit. Hadfield, along with flight engineers American Tom Marshburn and Russian Roman Romanenko, returned aboard a Soyuz capsule. They landed under a large parachute in the flat steppes of Kazakhstan at 10:31 p.m. ET.

Full Article at cbc.ca

May 6, 2013: New Kind of Cosmic Flash May Reveal Birth of a Black Hole

When a massive star exhausts its fuel, it collapses under its own gravity and produces a black hole, an object so dense that not even light can escape its gravitational grip. According to a new analysis by an astrophysicist at the California Institute of Technology (Caltech), just before the black hole forms, the dying star may generate a distinct burst of light that will allow astronomers to witness the birth of a new black hole for the first time.

Full Article at sciencedaily.com

May 3, 2013: Dark-matter detector hears first particle pops

Pop pop pop! The sound of bubbles bursting Wednesday morning signaled that a new dark-matter detector is up and running. The COUPP-60 experiment, based a mile and a half underground at SNOLAB in Canada, searches for dark-matter particles passing through a heated mixture of purified water and CF3I, a chemical used in fire extinguishers. Particles passing through the liquid interact with it, leaving behind a small amount of energy—just enough to cause the liquid to boil.

Full Article at symmetrymagazine.org

May 1, 2013: Entire galaxies feel the heat from newborn stars: Bursts of star birth can curtail future galaxy growth

Astronomers using the NASA/ESA Hubble Space Telescope have shown for the first time that bursts of star formation have a major impact far beyond the boundaries of their host galaxy. These energetic events can affect galactic gas at distances of up to twenty times greater than the visible size of the galaxy—altering how the galaxy evolves, and how matter and energy is spread throughout the Universe.

Full Article at phys.org

May 1, 2013: Using black holes to measure the Universe's rate of expansion

Prof. Hagai Netzer of Tel Aviv University has developed a method that uses black holes to measure distances of billions of light years with a high degree of accuracy. The ability to measure these distances will allow scientists to see further into the past of the universe than ever before.

Full Article at phys.org

May 1, 2013: Study finds white dwarf stars may hold the key to detecting life on other planets

Because it has no source of energy, a dead star—known as a white dwarf—will eventually cool down and fade away. But circumstantial evidence suggests that white dwarfs can still support habitable planets, says Prof. Dan Maoz of Tel Aviv University's School of Physics and Astronomy.

Full Article at phys.org

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Club Announcements

April 1, 2014

Astronomy Club members! Our final meeting of the year is this Wednesday, and we will be holding elections followed by an episode of COSMOS: A Spacetime Odyssey! This is an important meeting, so we encourage all members to attend. See the "events" tab for details.

March 18, 2014

Hello astronomy lovers! Our second last meeting is this Wednesday, where Dr. Matt Johnson will be discussing "The Golden Age of Cosmology"! See the "events" tab for details.

January 21, 2014

YUAC members, our next meeting is tomorrow, where we will be holding our annual "Dark Moon Theory"! See "events" tab for details.

January 7, 2014

Welcome back to school everyone, we hope you enjoyed your holidays and had a wonderful new year! We are holding our first event of the year this Wednesday, where our guest speaker Paul Mortfield of the DDO will be discussing "Bringing the Largest Telescope in Canada Back to Life". See "events" tab for details.

November 26, 2013

Fellow astronomy lovers! Our next meeting is on Wednesday, and our guest speaker Ron Macnaughton will be talking about comets! See "events" tab for details.

November 11, 2013

Hello YUAC members! Our next meeting is coming up this Wednesday, where our guest speaker Dr. Paola Rodriguez Hidalgo will be talking about her research on quasars! See "events" tab for details.

October 27, 2013

Hello everyone! Our next meeting will be "Cloud Chamber and Non-Newtonian Fluid", and will be on TUESDAY October 29th due to the co-curricular days. See "events" tab for details.

October 15, 2013

Hello YUAC members! Our third meeting of the year is tomorrow, and we have guest speaker Professor Patrick Hall doing a talk on “Gas Falling Into Black Holes: A Surprising Discovery”. See "events" tab for details.

October 1, 2013

Fellow YUAC members! Our second meeting of the year is tomorrow (Wednesday October 2), and we'll be playing Astronomy Style Jeopardy as well as holding elections! See the "events" tab for more details.

September 16, 2013

Fellow students and astronomy enthusiasts! The York University Astronomy Club is having our first meeting this Wednesday at 5:30 PM! Our guest speaker is the amazing Paul Delaney, who will be talking about Saturn! Go to the "events" tab for more details.

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