A new explanation for the solar system's radioactive elements suggests Earth-like planets might be found orbiting up to 50 ...

This gas cloud located 500 light years away from our solar system is about to become a planet.This process usually takes a ...

Scientists using NASA's James Webb Space Telescope have observed a rare type of exoplanet, or planet outside our solar system ...

The interstellar comet 3I/ATLAS will reach its closest point to Earth on December 19, giving astronomers a closer look at the ...

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

Interstellar comet 3I/ATLAS makes its closest Earth approach on Dec. 19, offering astronomers a rare chance to study a visitor from beyond the solar system ...

This interstellar vagabond is only the third large interstellar visitor that we have ever discovered — an asteroid or comet ...

Carl Sagan famously said that "We're all made of star stuff." But he didn't elaborate on how that actually happened. Yes, ...

The interstellar visitor 3I/ATLAS is coming near Earth this week and stargazers can see it before it vanishes into deep space ...

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

The rings of Saturn are normally thought to be flat, but measurements by the Cassini spacecraft show that some of their ...

The "agile, powerful, lightweight," motorcycle has been "engineered to break limits," the architectural firm told Newsweek.