Mercury is tiny, barely bigger than the Moon. Its metallic core makes up 70% of the planet’s mass, vastly exceeding Earth’s ...

For decades, Uranus baffled scientists because it seemed to have no internal heat. Now, new computer modeling shows the ...

Astronomers using the James Webb Space Telescope are unraveling the mysteries of TRAPPIST-1e, an Earth-sized exoplanet 40 ...

Titan’s atmosphere tilts and shifts seasonally. The discovery shapes future exploration. Researchers at the University of Bristol have uncovered unusual behavior in Titan’s atmosphere for the first ...

A comet traveling outside the solar system and heading toward the Earth is much larger than scientists first believed, a ...

I/ATLAS stands apart from other interstellar objects because of its size as well as pace, and will soon disappear from ...

A trio of space missions just launched, set to deepen our understanding of the sun's influence and protect Earth from the ...

Scientists have gotten a never-before-seen look at an area around a large exoplanet 625 light-years away where moons like the ...

Cosmic dust, it turns out, isn’t made of miniature rocks. It’s fluff. A comprehensive analysis of data from space missions, ...

NASA is inviting the public to take part in 36 “citizen science” projects that let volunteers contribute to real scientific ...

Since we all have a relationship with the Sun, it is important to learn about how it impacts our lives. NASA’s Heliophysics ...

The aurora borealis is a spectacle of space weather, but solar flares and coronal mass ejections have far more Earthly ...