Space
Scientists Say: Event horizon
Past this boundary, nothing that enters a black hole can ever leave — not even light.
Earth's Place in the Universe
More Stories in Earth's Place in the Universe
- Space
The lives of black holes, from birth to death
After more than a century, scientists are just beginning to understand black holes — the most bizarre and powerful things in the universe.
- Physics
Exploding black holes could solve a big cosmic mystery
Tiny black holes in the early universe could explain why matter is common and antimatter is not.
- Space
Scientists Say: Observable universe
No light will ever reach Earth from beyond this distant horizon of space.
- Space
Do multiple universes exist?
Some branches of physics hint that our universe is just one of many in a vast “multiverse.”
- Planets
Massive underground lava tube found on Venus
A collapsed structure, which turned up in 30-year-old radar data from Venus, may be one of many underground caves.
- Space
Check out some of the best pics from the Artemis II mission
The Artemis astronauts are safely back on Earth. But they immortalized their historic voyage to the moon in these stunning photographs.
- Space
Artemis II just made a historic loop around the moon
The astronauts had a front-row view of the lunar farside and the first eclipse ever seen from the moon.
- Space
Astronauts are flying to the moon aboard Artemis II
This first human trip to the moon in more than 50 years will take four astronauts farther than anyone has gone before.
- Space
Supermassive black holes might trace back to huge, ancient stars
Hefty stars might have collapsed into “intermediate mass” black holes — the building blocks of supermassive ones, a teen’s research suggests.
