Space
- Cosmology
A cosmic quandary, risks of hatching early and more reader feedback
The cosmos, tadpole escape artists, vehicle collisions and more in reader feedback.
- Astronomy
The sun isn’t the only light source behind that summer tan
About 99.999% of the light that creates a suntan comes from the sun; the rest comes from the Big Bang and galaxies throughout the universe.
- Astronomy
Vanished star may be first known failed supernova
A star that vanished in another galaxy might be the first confirmed case of a failed supernova — and the birth of a black hole.
- Planetary Science
Source of Charon’s red north pole is probably Pluto
The dark red pole on Charon, the largest moon of Pluto, is probably gas that escaped from Pluto and was then transformed by sunlight.
- Astronomy
Gaia mission’s Milky Way map pinpoints locations of billion-plus stars
New map of the galaxy provides unprecedented positions of over 1 billion stars and promises of a detailed 3-D atlas to come.
- Planetary Science
Source of Charon’s red north pole is probably Pluto
The dark red pole on Charon, the largest moon of Pluto, is probably gas that escaped from Pluto and was then transformed by sunlight.
- Planetary Science
Moon rocks may have misled asteroid bombardment dating
Discrepancies in moon rock dating muddy Late Heavy Bombardment debate.
- Planetary Science
Rock star Freddie Mercury now has his own space rock
Queen front man Freddie Mercury is the latest in a long list of celebrities to have an asteroid named after him.
- Planetary Science
OSIRIS-REx spacecraft launches tonight for mission to grab asteroid sample
NASA’s OSIRIS-REx spacecraft is about to launch for a seven-year mission to study the asteroid Bennu and bring samples of the space rock back to Earth.
- Astronomy
Proxima b deserves buzz, even if some didn’t notice
Editor in chief Eva Emerson discusses Earth's newest potentially habitable neighbor.
- Health & Medicine
Readers contemplate aging research
Aging research, dino guts and Earth's quasisatellite in reader feedback.
- Planetary Science
Philae lander spotted on comet 67P
Missing since November 2014, the Philae comet lander has been found lurking in the shadows on comet 67P/Churyumov-Gerasimenko.
