Space
- Space
Supernovas are cosmic ray factories
Supernova remnants provide evidence that these intense stellar explosions send cosmic rays hurtling through the galaxy.
- Space
Uncertainty at a grand scale
A test of Heisenberg’s principle, on a scale visible to the naked eye, may aid the search for gravitational waves.
- Space
Supernova’s death throes revealed
In archival images, astronomers see giant star’s activity in weeks before supernova.
- Space
An atom sheds light on neutron stars
By measuring a neutron-rich atom on Earth, astronomers virtually dig into the crust of dead stars.
- Space
Scale weighs black holes better than before
Microwave telescopes on the ground determine the masses of supermassive objects millions of light-years away.
- Space
Proton’s radius revised downward
A new study confirms an earlier result that found that the proton is smaller than thought, opening up the possibility of undiscovered particles and forces.
- Space
Life has prospects on moons of giant extrasolar planets
Astronomers show how bodies orbiting distant Jupiters could be habitable.
- Space
Stellar baby picture
The newborn stars, not even a million years old, formed when regions of a cloud of cool dust and gas (visible at center left) collapsed from gravity.
- Health & Medicine
Long space missions may be hazardous to your sleep
Crew on simulated Mars trip moved less and slept more during 520-day project.
- Space
New Martian meteorite is one of a kind
Rock is water-rich and resembles observed regions of Red Planet’s crust.
- Space
Planets and their sun grow together
Radio telescopes reveal how nascent bodies funnel gas to their parent star.
- Space
The Real Story of Risk: Adventures in a Hazardous World by Glenn Croston
A biologist explores why humans are poor at judging risk — fearing rare shark attacks, for example, more than common heart attacks. Prometheus, 2012, 276 p., $19
