Analysis of an ancient meteorite suggests that rocky planets both near and distant from the sun may have formed at the same ...

International astronomers have for the first time witnessed the birth of a planetary system beyond Earth's sun that could one ...

Do you know what would happen if the largest planet in our solar system suddenly exploded? In this fascinating video, we explore the mind-bending consequences of a hypothetical Jupiter explosion,and ...

"We found that hundreds of exoplanets are larger than they appear, and that shifts our understanding of exoplanets on a large ...

Astronomers witness first moments of planet formation as rock grains crystallize around distant star HOPS-315.

CAPE CANAVERAL, Fla. -- Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby ...

According to the paper laying out the research behind the discovery, "TOI-1846b is a super-Earth-sized planet, with a radius ...

"We believe that continuing such activities will further expand our horizon in the field of planetary science." ...

This solar system of seven Earth-sized planets may be the best place to look for alien life. Many of the planets have the right temperatures needed for hosting liquid water.

NASA’s Kepler mission has discovered the first Earth-sized planets orbiting a Sun-like star outside our solar system. The planets, called Kepler-20e and Kepler-20f, are too close to their star ...

A replica solar system that dates back to the dawn of time and includes five Earth-like planets has been discovered by researchers in the U.K.

Discovering planets that both resemble Earth and our solar system’s ocean worlds across our Milky Way galaxy could make them targets for future telescopes, like NASA’s James Webb Space ...