For almost a decade, astronomers have been searching for a ninth planet in the solar system. Recently, new evidence of ...

A new study has proposed the existence of Planet Y, an alternative Planet Nine candidate that is smaller and closer to Earth ...

PN7, earth's second moon, is a quasi-moon — a celestial object that travels almost exactly in sync with Earth. Researchers at ...

Earth just got a new tag-along in space — a little asteroid named 2025 PN7. NASA confirmed this week that the rock, discovered by the University of Hawaii, is officially a “quasi-moon” — a rare type ...

When a Mars-sized meteorite slammed into Earth billions of years ago, the impact completely reset any and all chemical ...

A rocky planet in the Milky Way galaxy may have an atmosphere, raising the possibility that life could exist on its surface, according to experts. TRAPPIST-1e, a planet belonging to a collection of ...

Roughly 4.5 billion years ago, the young solar system was a swirling cloud of gas and dust that formed the first asteroids and planets, including the young Earth, then a hot, molten sphere likely ...

A new study led by UNLV scientists sheds light on how planets, including Earth, formed in our galaxy—and why the life and ...

Planet Labs (PL) is reportedly set to deploy a new constellation of Earth observation satellites, which are designed to deliver high-resolution, AI-enhanced imagery within an hour. According to a ...

For years, scientists believed the “giant impact” that formed the Moon melted and reshaped the entire young Earth, erasing ...

Planet has announced a new class of imaging satellites that will replace a line of spacecraft dating back to the company’s ...