Space
Newfound clouds of missing ‘ordinary’ matter sit outside galaxies
Dark matter isn’t the universe’s only “missing” matter. Distant bursts of radio waves have now turned up vast, faint gas clouds surrounding galaxies.
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
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.”
- 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.
