The origin of super-Earths and sub-Neptunes has been revealed in a system of four young planets that are dramatically losing ...

A decade of observations of four planets around the young planetary system V1298 Tau revealed a rare, long-sought missing ...

Why don't planets fall into the stars they orbit if they're constantly being pulled by gravity?Lindsey CoughterRocky Mount, ...

A planet circling at a sharp 90-degree angle to the orbits of its two host stars has now been confirmed. This discovery challenges long-standing ideas about how planets form and orbit in the cosmos.

Thanks to the discovery of thousands of exoplanets to date, we know that planets bigger than Earth but smaller than Neptune ...

The star system V1298 Tau reveals that many planets begin as large, low-density worlds that slowly shrink and shed their ...

Some of the most promising places to look for extraterrestrials have remained, so far, mostly hidden from astronomers. Now a game-changing instrument called NIRPS (Near-Infrared Planet Searcher) is ...

At half the size of Earth and one-tenth its mass, Mars is a featherweight as far as planets go. Yet new research reveals the ...

Astronomers have captured the most dramatic view yet of a planet losing its atmosphere, watching the ultra-hot gas giant WASP ...

Mars’ positioning is what gives the lighter planet such a strong pull. “The closer it is to the sun, the more a planet ...

There could be a ninth planet in our Solar System after all - and no, it's not Pluto. Instead, it's the theoretical Planet X, also called Planet Nine, a wide-orbit planet that would circle the Sun ...