04 June 2013, 06:30 AM ET
Stars should be at least 8.7 percent as wide as our own sun, researchers say.
03 June 2013, 05:04 PM ET
A star smaller than Jupiter regularly fires off flares as powerful as the biggest eruptions from our sun.
03 June 2013, 03:25 PM ET
Using NASA's Swift satellite, astronomers at NASA and Pennsylvania State University created the most detailed ultraviolet light surveys of the Large and Small Magellanic Clouds, the two closest major galaxies, in a mosaic 14,000 light-years across.
03 June 2013, 02:15 PM ET
Astronomers are witnessing a cosmic death on a galactic scale
30 May 2013, 02:38 PM ET
The small, blue galaxy visible in the upper left corner of the Tadpole ripped through the larger spiral galaxy, distorting it and pulling out a long tail of stars, gas and dust as seen in this cool space wallpaper.
29 May 2013, 05:37 PM ET
Stars that have less salt in their compositions live longer lives, a new study shows.
24 May 2013, 01:06 PM ET
Computer simulations of galaxies growing over billions of years show that cold gas to power stars spirals into the cores of galaxies along spiral filaments.
23 May 2013, 02:01 PM ET
The twin stars of SS Cygni are hundreds of light-years closer to Earth than thought.
22 May 2013, 01:01 PM ET
The find sheds new light on the role such huge collisions played in galactic evolution long ago.
21 May 2013, 09:59 AM ET
This stunning space wallpaper reveals Supernova 1987A in the Large Magellanic Cloud. Glittering stars and wisps of gas create a backdrop for the self-destruction of a massive star.
20 May 2013, 06:50 AM ET
Photographer Christopher Georgia captured this amazing image of the Milky Way Galaxy from Acadia National Park.
08 May 2013, 03:44 PM ET
This intriguing space wallpaper shows the galaxy catalogued as 2MASX J05210136-2521450, which stands out at a glance due to its interesting shape.
08 May 2013, 07:00 AM ET
Amateurs could help shed light on mysterious dark matter and other cosmic phenomena.
07 May 2013, 04:15 PM ET
This cool space wallpaper is an illustration showing a messy, chaotic galaxy undergoing bursts of star formation.
30 April 2013, 10:27 AM ET
Jupiter, Mercury and Venus get together. Using binoculars, see the Virgo Cluster and Sombrero galaxy. The Eta Aquarid meteor shower rains and an annular solar eclipse is viewable in Northern Australia.
29 April 2013, 06:50 AM ET
Veteran skywatcher P-M Heden captured this amazing night sky photo of Comet PanSTARRS and the Andromeda Galaxy over rural Sweden.
23 April 2013, 05:42 PM ET
The galaxy is turning almost all its gas into baby stars.
17 April 2013, 01:01 PM ET
An ancient galaxy is churning out stars nearly 20 times as fast as its modern equivalents.
15 April 2013, 06:00 PM ET
Scientists have conducted a postmortem on the last supernova ever seen by the naked eye in our galaxy.
09 April 2013, 01:29 PM ET
This space wallpaper reveals Galaxy 2MASX J09442693+0429569 imaged by Hubble. This elliptical galaxy has entered a transitional phase from a young, star-forming galaxy to an older, larger, "red and dead" galaxy.
09 April 2013, 09:54 AM ET
NASA is funding two projects to search for exoplanets and has enlisted some the help of two big-name partners.
05 April 2013, 03:59 PM ET
You can see all but a few of the 110 Messier objects in a single night this weekend.
01 April 2013, 11:13 AM ET
The object in this fascinating space wallpaper is Jonckheere 900 or J 900, a planetary nebula — glowing shells of ionised gas pushed out by a dying star.
27 March 2013, 11:45 AM ET
Scientists have been stumped on how baby stars can get so big.
27 March 2013, 10:47 AM ET
This amazing space wallpaper from ESO’s Very Large Telescope at the Paranal Observatory in Chile shows NGC 1637, a spiral galaxy located about 35 million light-years away in the constellation of Eridanus (The River).
26 March 2013, 06:14 PM ET
A new class of supernova represents a miniature star explosion.
26 March 2013, 05:13 PM ET
Are you a star at star trivia?
19 March 2013, 11:20 AM ET
Europe’s XMM-Newton space telescope has helped to identify a star and a black hole that orbit each other at the dizzying rate of once every 2.4 hours, smashing the previous record by nearly an hour.
19 March 2013, 08:28 AM ET
This stunning space wallpaper is an artist’s impression showing an eclipsing binary star system. As the two stars orbit each other they pass in front of one another and their combined brightness, seen from a distance, decreases.
18 March 2013, 10:23 AM ET
This space wallpaper is a schematic representing how light from a distant galaxy is distorted by the gravitational effects of a nearer foreground galaxy known as Einstein rings.
15 March 2013, 04:30 PM ET
Schmidt discusses quasars, their impact on astronomy and the anniversary of his seminal find.
15 March 2013, 01:46 PM ET
The Keck Observatory will be looking for more donations to counteract a freeze on federal grant spending.
13 March 2013, 02:02 PM ET
Astronomers still lack a basic understanding of how these incredibly bright objects work.
12 March 2013, 11:45 AM ET
This spectacular space wallpaper is a map of a section of the Universe showing the positions of thousands of galaxies that were measured as part of the VIPERS survey with ESO’s Very Large Telescope.
08 March 2013, 03:47 PM ET
This space wallpaper combines Hubble observations of M 106 with additional information captured by amateur astronomers Robert Gendler and Jay GaBany. Gendler combined Hubble data with his own observations to produce this stunning color image.
04 March 2013, 05:56 AM ET
Skywatcher P-M Heden of The World at Night snapped this beautiful image of a family stargazing in September 2012.