30 June 2011, 07:28 PM ET
Accelerated high energy particles produced a series of stripes in the remnants of the Tycho supernova. Chandra X-ray Telescope revealed this feature, showing an expanding bubble of superheated debris.
28 June 2011, 02:13 PM ET
Gas from a supergiant star was swallowed into a neighboring neutron star's gravity field, superheating the gas and producing a flare lasting 4 hours. XMM-Newton space observatory witnessed the IGR J18410-0535 system event. (Video: art. impression)
23 June 2011, 10:46 AM ET
Within the Orion constellation lies the red supergiant star Betelgeuse and its colorful flame-like nebula. Zoom into the new infrared image from the European Southern Observatory's Very Large Telescope of the dying star.
23 June 2011, 08:01 AM ET
The planets Venus, Jupiter, Mars are shining bright at dawn in the northeastern sky.
23 June 2011, 06:01 AM ET
The nebula stretches about 37 billion miles away from its parent star's surface.
22 June 2011, 01:26 PM ET
Look into the violent history of galaxy cluster Abel 2744, which includes a cosmic throw down that lasted a period of 350 million years.
21 June 2011, 08:37 AM ET
18th century observer Charles Messier only cared for comets, yet he's remembered for his catalogue of stars and clusters.
17 June 2011, 11:50 AM ET
A supermassive black hole in the galaxy GRS 1915+105 spins and swallows stellar material with an even rhythmic pattern, the Chandra X-ray observatory has discovered.
17 June 2011, 08:00 AM ET
A new photo from the Hubble Space Telescope shows our dusty neighbor galaxy Centaurus A in bright and brilliant detail.
16 June 2011, 02:01 PM ET
Did a massive black hole in a distant galaxy devour a star that wandered too close, producing a bright jet pointed at Earth?
16 June 2011, 06:00 AM ET
A glowing ring spotted in space seems at first more like superhero fiction than science fact.
10 June 2011, 03:12 PM ET
A newly released image from the Hubble Space Telescope shows details of a supernova explosion in a neighboring galaxy.
09 June 2011, 11:37 AM ET
Saturn forms two night sky triangles this month, one with stars and the other with the moon.
08 June 2011, 01:00 PM ET
A group of supernova explosions that don't fit into pre-existing categories is challenging astronomers understanding of how stars die.
07 June 2011, 01:08 PM ET
An oddball conglomeration of stars called NGC 6791 represents an entirely new class of star cluster, a new study suggests.
06 June 2011, 11:42 AM ET
At a stargazing event held as part of the 2011 World Science Festival, about 500 people gathered in Brooklyn Bridge Park to look at a handful of stars and the planet Saturn.
03 June 2011, 12:03 PM ET
The binary star Porrima is offering a rare chance to resolve its twin stars through a small telescope this month.
03 June 2011, 07:00 AM ET
A lone-wolf star could change astronomers' understanding of star formation.
02 June 2011, 01:16 PM ET
The fine detail and exceptionally perfect spiral structure of the galaxy make it hard to believe that this is a real observation and not an artist’s impression or a screenshot taken straight from Star Wars.
01 June 2011, 10:35 AM ET
There are a great many wonders to see in the night sky. A telescope is your magic carpet, your time machine and much more.
01 June 2011, 06:01 AM ET
Astronomers have photographed a dead-ringer of the Milky Way.
31 May 2011, 10:27 AM ET
All large galaxies - including ours - seem to have supermassive black holes at their centers. Astrophysicists Ann Wehrle, Roeland van der Marel and Ed Turner explain how these beasts form.
31 May 2011, 01:05 AM ET
See spectacular images of different kinds of galaxies from the WISE mission.
30 May 2011, 07:00 AM ET
A newfound stretch of the Milky Way reveals that our galaxy's distant rim is shaped like the edge of a sombrero.
26 May 2011, 12:36 PM ET
A green crystal rain falling onto an infant star holds the key to weird minerals in comets.
23 May 2011, 11:22 AM ET
Observations of a single star in 1923 changed the course of astronomy forever.
23 May 2011, 12:00 AM ET
Astronomers get treated to their closest view yet of jets escaping a galaxy's central black hole.
20 May 2011, 02:26 PM ET
Particle jets from Centarus A's super-massive black hole blast the power of 55 million suns. The TANAMI project radio telescope got this most detailed view of such jets.
20 May 2011, 02:19 PM ET
Astounding views of stars and planets from right here on Earth.
19 May 2011, 01:45 PM ET
A new study could confirm that the mysterious forces of dark energy are pulling the universe apart at ever-increasing speeds.
16 May 2011, 02:12 PM ET
Raging galactic windstorms have been observed by the Herschel infrared space observatory.
13 May 2011, 12:56 PM ET
A starry constellation of two hunting dogs is now visible in the nighttime sky.
13 May 2011, 10:29 AM ET
Saturn, the moon and a bright star team up for a night sky triangle this weekend.
12 May 2011, 09:39 AM ET
A new image from the Hubble Space Telescope reveals a dwarf galaxy packed with young stars and gas clouds.
11 May 2011, 01:00 PM ET
Among the more than 500 known alien planets, many are oddballs.
11 May 2011, 08:31 AM ET
A pair of white dwarf stars orbiting each other once every 39 minutes will eventually collide in a few million years, creating a newborn stars as seen in this animation.