Space
- Space
First detection of carbon dioxide in an exoplanet
Moving one step closer to finding the fingerprints of life in a habitable planet beyond the solar system, astronomers have for the first time detected carbon dioxide in the atmosphere of an extrasolar planet.
- Physics
Standard model gets right answer for proton, neutron masses
Correct calculation strengthens theory of quark-gluon interactions in nuclear particles.
- Space
Water-ice deposits found beneath Martian hills
Using radar from an orbiting spacecraft to penetrate the hidden recesses of Mars, planetary prospectors have uncovered vast reserves of water-ice buried beneath rocky debris.
- Space
Misplaced muons either mundane or monumental
During an experiment in Fermilab's Tevatron particle accelerator, a group of elementary particles called muons showed up in a strange place. Physicists are considering the likely implications.
- Space
Extrasolar planetary system makes pictorial debut
The first images of a planetary system beyond the solar system are released, while the Hubble Space Telescope snaps a shot of likely planet orbiting a nearby star.
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- Space
Half-life (more or less)
Physicists are stirred by claims that the sun may change what’s unchangeable—the rate of radioactive decay.
- Space
Hubble repair mission delayed yet again
Even as the Hubble Space Telescope was able to snap an image after several weeks of idling, a mission to visit and upgrade Hubble suffered another delay.
- Space
MESSENGER glimpses Mercury’s Western hemisphere, new features
The results are in from MESSENGER’s second flyby of Mercury, one of the least-explored planets in the solar system.
- Astronomy
Double the rubble: Nearby star system has two asteroid belts
Epsilon Eridani hosts an inner asteroid belt and planet arranged like those in the solar system.
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- Space
Try, try again
NASA announced October 23 that, despite a series of setbacks, the prognosis is good for reviving the Hubble Space Telescope.
