Astronomy
- Planetary Science
Space simulations of 1960s focused on survival
50 years ago, space simulations focused on survival. Now, quality of life is critical, too.
- Cosmology
The past according to Planck: Cosmologists got a lot right
New results from the Planck satellite largely support cosmologists’ theories, but leave the door open for new discoveries.
- Astronomy
Pair of stars buzzed the solar system 70,000 years ago
Astronomers discover a binary system that made the closest known flyby of the sun.
- Astronomy
Closest star approach to the sun
Astronomers discover a binary system that made the closest known flyby of the sun.
- Astronomy
Giant hydrogen cloud headed for Milky Way
A high-speed hydrogen cloud on a crash course with the Milky Way appears to be an exotic interloper, preliminary data suggest.
- Astronomy
Top 10 messages to send to E.T.
Fears that sending signals to alien civilizations would provoke an invasion shouldn't prevent transmitting important messages.
- Astronomy
Stellar nursery gives birth to quadruplets
Four young stars, still in their cocoons, show that binary and other multiple star systems form together.
- Astronomy
Finding joy and inspiration in the pursuit of knowledge
Editor in Chief Eva Emerson ruminates on the power of knowledge, and the ways scientists are refining how we think about the aging human brain, far away comets and even the speed of light.
- Astronomy
White dwarf pair will trigger a supernova — in 700 million years
Astronomers found two white dwarfs with enough mass to explode as a supernova.
- Astronomy
First stars born later than thought
New results from the Planck mission indicate that the first stars began to shine 550 million years after the Big Bang.
- Astronomy
Asteroids or planets might trigger a supernova
Rocky debris falling onto a white dwarf might trigger some supernovas.
- Physics
When entering a black hole, fasten your seat belt
Rapidly spinning black holes can generate turbulence, a new analysis shows.
