Space
Scientists Say: Observable universe
No light will ever reach Earth from beyond this distant horizon of space.
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
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
Comets may be the source of sandy dunes on Saturn’s largest moon
In an early reshuffling of the solar system, comet collisions and other space rocks could have sent dusty bits falling to Titan’s surface.
- Space
Check out the magnetic fields around our galaxy’s central black hole
Astronomers have captured polarized light coming from the Milky Way’s supermassive black hole. This offers insight into its magnetic fields.
- Physics
Forests could help detect ‘ghost particles’ from space
If trees could act as natural antennas, one physicist proposes that they just might pick up signals of hard-to-spot ultra-high energy neutrinos.
- Space
Let’s learn about meteorites
Meteorites are bits of space rock that have crash-landed on Earth — or on another celestial body.
- Planets
Huge polygons on Mars hint its equator may once have been frozen
A Chinese rover used radar to reveal long-buried terrain. The discovery hints that Mars’ equator was once much colder and wetter.
- Planets
Jupiter has a never-before-seen jet stream — and it’s speedy
Spotted in images from the James Webb telescope, the high-altitude current may help untangle the workings of the giant planet’s atmosphere.
- Planets
Analyze This: Neptune’s cloud cover syncs up with the solar cycle
Telescope observations hint how sunlight-driven chemistry may boost cloud cover on our solar system’s farthest planet.
