Space
Scientists Say: Event horizon
Past this boundary, nothing that enters a black hole can ever leave — not even light.
HS-ESS1-2
Construct an explanation of the Big Bang theory based on astronomical evidence of light spectra, motion of distant galaxies, and composition of matter in the universe.
More Stories in HS-ESS1-2
- Space
Do multiple universes exist?
Some branches of physics hint that our universe is just one of many in a vast “multiverse.”
- 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.
- Space
Fast, mysterious clouds swarm around our galaxy
Astronomers want to know the source — and importance — of these faint, fast-moving clouds that zoom beyond and toward our Milky Way’s disk.
- Space
Let’s learn about spooky ‘dark energy’
No one knows exactly what this stuff is, but it’s shaping our universe on the largest scales.
- Space
A rogue black hole is on the loose in our galaxy
Astronomers now agree there’s a lone black hole wandering around the Milky Way — the first solitary black hole ever detected.
- Planets
A giant, busted planet fuels a nebula’s mysterious glow
This Helix Nebula is like a colorful explosion frozen in time. Its center seems to be steadily radiating X-rays.
- Space
Ancient black holes might solve the mystery of dark matter
Studies of gravitational waves, stars and other features of the universe could reveal whether such “primordial” black holes exist.
- Space
This zombie star’s spiky filaments are baffling astronomers
The star's odd tendrils were somehow formed by a supernova that skywatchers saw way back in 1181.
- Planets
Scientists Say: Regolith
This sandlike dust blankets planets, asteroids and other rocky surfaces of our solar system, including our own planet.
