Space
We summarize the week's scientific breakthroughs every Thursday.
- Space
Rosetta finds a rocky jewel
On September 5, the European Space Agency's Rosetta mission became the first spacecraft to take a close-up portrait of a rare type of asteroid that lies in the main belt, between the orbits of Mars and Jupiter.
- Space
Black holes have limits
A review of current evidence suggests an upper limit to a black hole's size.
- Space
PAMELA may have spotted the dark stuff
An orbiting observatory may have discovered particles of dark matter -- the proposed, invisible material that researchers believe holds the universe together.
- Space
Milky Way’s black hole seen in new detail
New radio wave observations are giving astronomers their closest look yet at the supermassive black hole believed to be lurking at the center of our galaxy.
- Space
Cosmic heavyweight
Astronomers discover the heftiest, most distant galaxy cluster, suggesting evidence for dark energy’s existence.
- Space
Clashing clusters
Two space telescopes capture the titanic collision of galaxy clusters in an image that shows dark matter separating from normal matter.
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- Space
Little middle ground for black holes
Black holes may not come in mid-sized versions. Astronomers expecting to find one in a galaxy cluster found a tiny black hole there instead.
- Astronomy
Preserving digital data for the future of eScience
From the August 30, 2008 issue of Science News.
- Space
Tiny object points to remote solar system reservoir
Possible comet may be distant visitor from the innermost region of the Oort Cloud, the proposed comet reservoir of the outermost solar system.
- Space
The great planet debate
New suggestions for defining a planet would put Pluto back on the list. Scientists discuss the International Astronomical Union’s definition during the Great Planet Debate Conference.
- Physics
Stars ablaze in other skies
A new study suggests that a surprising number of universes, even those with laws of physics different from those in our universe, can still support stars.
