Later in December, the 3I/ATLAS interstellar comet will get as close to Earth as it ever will. Here's what to know.

"During the early solar system's game of cosmic billiards, Earth was struck by a neighbor,” said Dauphas. “It was a lucky shot. Without the moon's steadying influence on our planet's tilt, the climate ...

Isotopic fingerprints in lunar, terrestrial, and meteorite samples show Theia formed in the inner Solar System, likely near Earth, clarifying the Moon’s giant-impact origins.

A distant gas giant the size of 10 Jupiter planets is now the first planet outside Earth's solar system to be mapped in three dimension, a team of astronomers says. What's more, the researchers are ...

観測技術の進歩により、太陽系の外にも地球のような惑星が多く存在することが分かってきており、地球外生命体発見への期待が高まっています。しかし、他の星系によくある地球型惑星を太陽系に配置したコンピューターシミュレーションにより、太陽系 ...

Of the seven Earth-sized worlds orbiting the red dwarf star TRAPPIST-1, one planet in particular has attracted the attention ...

Around 4.4 million years ago—long before humans existed—two massive, blazing-hot stars swept past our solar system. They didn ...

NASA revealed that scientists discovered sugars that are “essential” to life and a “gum-like” substance on the space rock ...

Did you know... that the largest planet in the Solar System can fit 1,321 Earths inside of it? Yeah, today we're going to run ...

Advances in observation technology have revealed that there are many planets like Earth outside the solar system, raising expectations for the discovery of extraterrestrial life. However, computer ...

Nearly 4.5 million years ago, two enormous, blazing stars swung close to the solar system. They did not touch the sun, but ...

Scientists find that two hot stars passed near our solar system 4.4 million years ago, altering nearby interstellar clouds.