Space
- Physics
Scientists Say: Big Bang
The Big Bang is the current theory about how our universe came to be. It began with a vast explosion of matter — a very Big Bang.
- Planets
What do you call a moon that escapes its planet? A ‘ploonet’
Giant planets in other star systems might lose their moons, creating new planets. And if moons do go rogue, current telescopes may be able to find them.
- Space
Caught: A ghost galaxy that may have hit ours long ago
Astronomers think they’ve found a galaxy that hit the Milky Way. The collision took place millions of years ago, leaving ripples in our galaxy.
- Climate
Space weather forecast: Big storms ahead
Scientists studying blobs of energetic particles shot from the sun may help us prepare for stormy consequences on Earth.
- Physics
Dying stars can make gold as they collapse into black holes
There are spinning stars in space. Some of them collapse into black holes. Along the way, they may generate a lot of heavy elements — including gold.
- Planets
Was that a Marsquake?
‘Marsquakes’ could help scientists learn more about the Red Planet’s inner activity.
- Earth
New insights on how STEVE lights up the night sky
Satellite data and photos snapped by citizen scientists reveal the origins of the strange atmospheric glow called STEVE.
- Physics
Meteorites may be excavating lunar water
When meteorites hit the moon, water is released from the moon’s soil. That suggests the moon has water buried all across its surface.
- Health & Medicine
How a year in space affected Scott Kelly’s health
Nearly a year in space changed Scott Kelly’s genes, brain function and more, NASA’s Twin Study shows.
- Planets
Teen astronomer finds a planet with two suns
Brian Wu, a teen researcher from New York City, has discovered a handful of distant planets, including a massive world that orbits two suns.
- Space
Scientists Say: Space weather
It may not be cloudy with a chance of rain, but space has weather too. Wind and ejections from the sun can send charged particles toward the Earth, knocking out our electricity.
- Space
Some dust in Earth’s atmosphere may hail from beyond Neptune
Bits of space debris in Earth’s atmosphere may come from the Kuiper Belt. This zone of dust and ice sits just beyond Neptune.
