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

A new study published in Nature has revealed a rare glimpse into the early life of four young exoplanets orbiting the star ...

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

A team of astronomers led from St. Andrews and Manchester universities today (6 July) announced the discovery of a ring of rocks circling a very young star. This is the first time these ‘pebbles,’ ...

Are planets in the solar system that are closer to the Sun older than the ones further away? – Gavriel, age 10, Paducah, Kentucky A cloud of collapsing gas created our Sun, the first thing to form in ...

Water isn't just delivered to planets by comets and asteroids — it can also be forged as worlds form, a new study finds. For decades, scientists have debated the origin of Earth's water. One ...

Stargazers in California and worldwide will be treated to a planet parade in February when Earth's seven sister planets align. You'll need high-powered binoculars or a telescope to see Neptune and ...