All Stories by Ron Cowen
- Astronomy
Supernovas, gamma-ray bursts: Two of a kind?
Astronomers have uncovered direct evidence that gamma-ray bursts are linked to supernovas.
- Astronomy
Starry View: Image reveals galaxy’s violent past
The most detailed visible-light picture ever taken of the heavens reveals that the nearby Andromeda galaxy has had a much more violent history than our own Milky Way has.
- Astronomy
Fast-track planet
Astronomers have found a planet that's the closest yet known to its parent star, whipping around the star every 28.5 hours.
- Astronomy
Chemistry of the Cosmos: Quasars illuminate the young universe
Measuring the composition of some of the earliest structures in the universe, two teams of astronomers have unveiled new findings about star formation in the young cosmos.
- Planetary Science
Roving on the Red Planet
NASA last month selected the landing sites for rovers scheduled to begin exploring the Martian surface next January.
- Astronomy
Telescope takes close-ups of distant star
Radio astronomers have for the first time probed ejected gas in the immediate surroundings of a distant star.
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- Astronomy
Echoes of a stellar outburst
Light from the outburst of a star has revealed its dusty surroundings.
- Astronomy
Comet LINEAR: Breaking up isn’t hard to do
New images reveal that Comet LINEAR, which passed near the sun late last month, has broken into at least 10 fragments.
- Astronomy
Once Upon a Time in the Cosmos: Using distant galaxies to study the early universe
Peering far back in time, two teams of astronomers report that they have found some of the universe's earliest galaxies.
- Astronomy
All-sky survey makes Internet debut
An atlas of some 5 million images from the Two Micron All-Sky Survey is now available online.
- Astronomy
Evidence grows for nearby planetary system
Astronomers have found the nearest known planet that lies outside the solar system, a mere 10.5 light-years from Earth.
