One key component might be RNA, a molecular cousin of DNA found in every form of life on Earth, and now scientists say they ...

Earth's relationship with space is much more complex than it used to be. Space around our planet was thought to be influenced ...

The interstellar comet 3I/ATLAS is just days away from coming as close to Earth as it will ever get. Here's how you can track ...

Today is one astronomers, stargazers and alien conspiracy theorists have been waiting for: interstellar comet 3I/ATLAS is as ...

A vast ring of rocky leftovers between Mars and Jupiter, the asteroid belt preserves clues to how the planets — and Earth ...

Scientists accidentally create gold hydride under extreme pressure, revealing unexpected chemistry and insights into ...

Comet 3I/ATLAS will get closest to Earth on Dec. 19, and astronomers will be watching.

When Earth was a molten inferno, water may have been locked safely underground rather than lost to space. Researchers ...

The closer to Earth a satellite flies, the clearer a picture it can take of the surface. But low-flying satellites also have ...

An ISS astronaut captured a rare lunar halo above the Indian Ocean, showing a thin glowing arc above Earth's blue edge.

SANTA CRUZ — Xi Zhang, a professor of Earth and planetary science at UC Santa Cruz, has discovered that an exoplanet classed ...

How common are Earth-like planets in the universe? When I started working on supernova explosions, I never imagined that my ...