Astronomy TOP STORY

Fifteen Years of NASA's Chandra X-ray Observatory

© NASA

Hydra A galaxy cluster

This Chandra X-ray Observatory image of the Hydra A galaxy cluster was taken on Oct. 30, 1999, with the Advanced CCD Imaging Spectrometer (ACIS) in an observation that lasted about six hours.


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Astronomy TOP STORIES

When Did Galaxies Settle Down?

© NASA

NGC 1365

Astronomers have long sought to understand exactly how the universe evolved from its earliest history to the cosmos we see around us in the present day.

Confirming a 3-D Structural View of a Quasar Outflow

Confirming a 3-D Structural View of a Quasar Outflow

A team of astronomers have observed a distant gravitationally-lensed quasar (i.e., an Active Galactic Nucleus;) with the Subaru Telescope and concluded that the data indeed present a 3-D view of the structure around a quasar.


Planet-forming Lifeline Discovered in a Binary Star System

Planet-forming Lifeline Discovered in a Binary Star System

A research group led by Anne Dutrey from the Laboratory of Astrophysics of Bordeaux, France, and the National Centre for Scientific Research (CNRS) observed the distribution of dust and gas in a binary star system called GG Tau-A.


LOFAR Discovers Largest Carbon Atoms Outside Our Milky Way

LOFAR Discovers Largest Carbon Atoms Outside Our Milky Way

An international team of astronomers under the guidance of graduate student Leah Morabito of Leiden Observatory has for the first time discovered the largest carbon atoms outside our Milky Way with the LOFAR radio telescope.


First Time-lapse Images of Exploding Fireball From A Nova

First Time-lapse Images of Exploding Fireball From A Nova

Astronomers at the University of Sydney are part of a team that has taken images of the thermonuclear fireball from a 'nova star' for the first time tracking the explosion as it expands.


Artist's Impression of Exocomets Orbiting the Star Beta Pictoris

Artist's Impression of Exocomets Orbiting the Star Beta Pictoris Video in Story

This video sequence is based on an artist's impression of exocomets orbiting the star Beta Pictoris. Astronomers analysing observations of nearly 500 individual comets made with the HARPS instrument at ESO's La Silla Observatory have discovered two families of exocomets around this nearby young star.


Fermi Finds Hints of Starquakes in Magnetar Storm

Fermi Finds Hints of Starquakes in Magnetar Storm Video in Story

NASA's Fermi Gamma-ray Space Telescope detected a rapid-fire "storm" of high-energy blasts from a highly magnetized neutron star, also called a magnetar, on Jan. 22, 2009.


Hubble Sees Turquoise-Tinted Plumes in Large Magellanic Cloud

Hubble Sees Turquoise-Tinted Plumes in Large Magellanic Cloud

The brightly glowing plumes seen in this image are reminiscent of an underwater scene, with turquoise-tinted currents and nebulous strands reaching out into the surroundings.


Big Black Holes Can Block New Stars

Big Black Holes Can Block New Stars

Massive black holes spewing out radio-frequency-emitting particles at near-light speed can block formation of new stars in aging galaxies, a study has found.


Comet 67P/Churyumov-Gerasimenko As Seen 45 Years Ago

Comet 67P/Churyumov-Gerasimenko As Seen 45 Years Ago

It was 45 years ago when astronomer Klim Churyumov and Svetlana Gerasimenko, one of his researchers, unwittingly began a new chapter in the history of space exploration.


Hubble Finds Extremely Distant Galaxy through Cosmic Magnifying Glass

Hubble Finds Extremely Distant Galaxy through Cosmic Magnifying Glass

Peering through a giant cosmic magnifying glass, NASA's Hubble Space Telescope has spotted a tiny, faint galaxy -- one of the farthest galaxies ever seen. The diminutive object is estimated to be more than 13 billion light-years away.


The Milky Way Ransacks Nearby Dwarf Galaxies of Their Gas

The Milky Way Ransacks Nearby Dwarf Galaxies of Their Gas

Astronomers using the National Science Foundation's Green Bank Telescope (GBT) in West Virginia, along with data from other large radio telescopes, have discovered that our nearest galactic neighbors, the dwarf spheroidal galaxies, are devoid of star-forming gas, and that our Milky Way Galaxy is to blame.


Curious Signal Hints at Dark Matter - First Evidence of Axions?

Curious Signal Hints at Dark Matter - First Evidence of Axions?

Space scientists at the University of Leicester have detected a curious signal in the X-ray sky -- one that provides a tantalizing insight into the nature of mysterious 'dark matter.'


First Evidence of a Hydrogen-Deficient Supernova Progenitor

First Evidence of a Hydrogen-Deficient Supernova Progenitor

A group of researchers led by Melina Bersten of Kavli IPMU recently presented a model that provides the first characterization of the progenitor for a hydrogen-deficient supernova.


APEX Reveals Hidden Star Formation in Protocluster

APEX Reveals Hidden Star Formation in Protocluster

Galaxy clusters are the largest objects in the Universe held together by gravity but their formation is not well understood.


Hubble Catches a Dusty Spiral in Virgo

Hubble Catches a Dusty Spiral in Virgo

This magnificent new image taken with the NASA/ESA Hubble Space Telescope shows the edge-on spiral galaxy NGC 4206, located about 70 million light-years away from Earth in the constellation of Virgo.


Hungry Black Hole Eats Faster Than Thought Possible

Hungry Black Hole Eats Faster Than Thought Possible

Astronomers have discovered a black hole that is consuming gas from a nearby star 10 times faster than previously thought possible.



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