Space
- Astronomy
Comet-crazed, and for good reason
Coming to the edge of knowledge, especially about what’s out in space, fires the imagination.
- Astronomy
Rosetta readies for its close rendezvous with a comet
The Rosetta spacecraft and its lander Philae are ready to make history in a risky rendezvous with comet 67P/Churyumov-Gerasimenko.
- Astronomy
Cosmic jets re-created in a lab
Physicists have recreated in a lab the plasma jets that erupt from young stars and black holes.
- Planetary Science
Surprises lurk inside a Saturn moon
NASA’s Cassini spacecraft finds possible ocean or football-shaped core inside Mimas.
- Planetary Science
MAVEN gives first look at Mars’ escaping atmosphere
Bits of Mars have been caught in the act of floating off into space.
- Quantum Physics
Hawking radiation spotted within sonic black hole
Lab-created sonic black hole emits energy as famed physicist Stephen Hawking predicted, though the experiment may not be definitive.
- Cosmology
Answers to questions posed by cosmology to philosophy
Tough questions about the philosophy of cosmology have answers; they just might not be right.
- Astronomy
Nearby galaxy might explain what tore apart universe’s hydrogen
A local galaxy is leaking enough ultraviolet light to ionize surrounding hydrogen, which could explain how the earliest galaxies transformed the universe.
- Astronomy
High-energy radiation from stellar explosions explained
The dance of a stellar duo might explain why some novas emit gamma rays.
- Chemistry
Lasers wrest oxygen from carbon dioxide
By zapping oxygen molecules off carbon dioxide, an experiment hints that Earth may have had breathable air long before the dawn of plants.
- Planetary Science
Sun may make most of the water on moon’s surface
A constant stream of particles from the sun bombarding the moon's surface may be the source of most lunar water.
-
