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A diamond planet? One may be orbiting a pulsar
Capturing the radio waves from a pulsar spinning at super speed, astronomers find a companion planet likely made of diamond.
August 26, 2011
Swift sees black hole devour a star
Since March 2011, astronomers have been watching a high-energy beam of X-rays streaming toward Earth. They think it's a black hole eating a star.
August 26, 2011
Colliding galaxies or cosmic exclamation point?
NASA released this composite image this week. It's two galaxies in the early stages of colliding. Learn more about the colliding galaxies here.
August 19, 2011
Webb Telescope instrument passes test to withstand space rigors
The first of four instruments for NASA's Webb Telescope has completed cryogenic testing designed to mimic the harsh conditions of outer space.
August 19, 2011
Earth’s moon might be younger than we thought
Earth's moon was thought to be 4.57 billion years old, but a detailed analysis of lunar rock indicates it might be as much as 200 million years younger.
August 18, 2011
Carbon in space tentatively identified
Astronomers may have glimpsed graphene in space, providing a clue about how our carbon-based selves and other life on Earth developed.
August 18, 2011
Necklace Nebula in new Hubble image
The Necklace Nebula is 12 trillion miles wide, located in the constellation Sagitta.
August 12, 2011
Mars rover takes 3-year journey to rim of crater
NASA's Mars Exploration Rover Opportunity has reached the Endeavour crater to study clay minerals that may have formed at a warmer, wetter time.
August 11, 2011
X-class solar flare August 9. Aurora alert in coming days
The sun emitted an X6.9 or X7 flare on August 9, 2011. X-flares are the biggest flares. Some radio blackouts might occur. Aurora alert in the next few days.
August 9, 2011
Mars’ north pole at northern summer solstice
What's it like at the north pole of Mars, at the time of the northern summer solstice? Check out this image from ESA's Mars Express spacecraft.
August 7, 2011
