Planet formation used to sound straightforward: dust clumps into rocks, rocks grow into worlds, and the rest is detail. A ...

Over the past decade or so, astronomers have speculated about the characteristics of rogue planets in the Milky Way galaxy. These "free-floating" worlds don't orbit stars, but instead roam the ...

NASA has confirmed that there are over 6,000 exoplanets floating out there in the galaxy, with another 8,000 exoplanets that are still waiting to be discovered.

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 ...

In a blow to anyone dreaming that complex life may exist elsewhere in the universe, a new study suggests we're unlikely to ...

"This discovery was partly serendipity! But, we believe there are many more such opportunities hidden in Hubble data." When you purchase through links on our site, we may earn an affiliate commission.

Scientists now have direct evidence that a planet — not just failed stars — can rove the galaxy after a violent expulsion from its orbit. - NASA / JPL-Caltech / R. Hurt illustration Astronomers have ...

Using gravitational microlensing, scientists have discovered a rare, large planet at the edge of the Milky Way. The planet is only the third to be found on the outskirts of our galaxy's dense central ...

Scientists weighed newborn planets for the first time, revealing puffy worlds that will shrink into super-Earths and sub-Neptunes, the galaxy's most common planets. (Nanowerk News) One of the biggest ...

Which way is ‘down’ has a different answer depending on where you are on Earth, in the solar system, in our galaxy and beyond ...

This artist’s concept depicts one of the solar system’s inner planets slamming into Earth after being nudged on a collision course by a passing star. Such a world-shattering cataclysm is extremely ...