Planets
- Planets
Pluto is no longer a planet — or is it?
In the 15 years since Pluto lost its status as a planet, some scientists continue to use whatever definition works best for them.
- Planets
Jupiter’s intense auroras heat up its atmosphere
Jupiter’s hotter-than-expected upper atmosphere may be warmed by charged particles slamming into the air above the poles.
- 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.
- Planets
The pebbled path to planets
Small pebbles zipping through a sea of gas may give rise to mighty planets.
- Planets
The Perseverance rover split CO2 on Mars to make breathable air
This oxygen-making experiment shows that astronauts could one day make air to breathe and to help fuel their ride back home.
- Space
Raindrops on alien worlds will obey Earth-like rules
Their size will be similar no matter what they’re made of or on which planet they fall, a new analysis finds.
- 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.
- Space
Rogue planets wander the galaxy all alone
Some planets don’t orbit stars. They were kicked into space long ago. The newest, smallest one found is only about as massive as Earth.
