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.
- Space
This image may be the first look at exomoons in the making
These observations offer some of the best evidence yet that planets around other stars have moons, or exomoons.
- Space
Born in deep shadows? That could explain Jupiter’s strange makeup
Dust that blocked sunlight might have caused the gas giant to form in a deep freeze, a new study suggests.
- Space
Cosmic filaments may have the biggest spin in outer space
These rotating threads of dark matter and galaxies stretch millions of light-years. Scientists want to know how their spin begins.
- Space
Spin in this Milky Way bar may show cosmic dark matter does exist
A method akin to studying a tree’s rings reveals the timeline of a slowdown in those stars at the heart of our Milky Way galaxy.
- Space
Huge arc of galaxies is surprising and puzzling cosmologists
The arc appears to violate a cosmic rule that on such large scales, matter will be evenly distributed.
- Space
The Milky Way’s ‘yellowballs’ are clusters of baby stars
The mysterious cosmic objects — first spotted by citizen scientists — turn out to be infant stars of various masses.
- Space
Stars made of antimatter could lurk in our galaxy
Fourteen sources of gamma rays in our galaxy look like they could be antistars — celestial bodies made of antimatter.
- Planets
The pebbled path to planets
Small pebbles zipping through a sea of gas may give rise to mighty planets.
- Planets
Scientists discover likely source of the moon’s faint yellow tail
These sodium atoms are part of the debris kicked up from the moon’s surface, mostly by micrometeorites, two new studies conclude.
- Planets
Signs of a hidden Planet Nine in our solar system may be an illusion
Hints of the remote planet, also called Planet X, relied on clumped up orbits of bodies beyond Neptune. A new study suggests that clumping doesn’t exist.
- Space
Let’s learn about the moon
The moon is Earth’s nearest neighbor, and its gravity helps stabilize the planet’s climate and creates the tides.
- Space
Scientists Say: Planet
Planets have to orbit a star, be big enough to form a sphere and keep other objects out of their path around their star.
