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

Every planet in our solar system is essentially round. But out in the universe, are there any planets that aren't spherical? Technically, planets are round, by definition; they need to have enough ...

For centuries our solar system was the only planetary system known to humans. We had no proof other worlds existed beyond those in our own cosmic backyard, and we imagined that if other planetary ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit before shoving four of the solar system's planets onto a different course. When ...

We have all been taught in school that planets revolve in the same direction as the Earth, i.e., in the counterclockwise ...

Scientists on Earth use seismometers to get a more detailed picture of what the inside of the Earth is made of. Those seismometers record vibrations from earthquakes. The vibrations change depending ...

We’ve found lots of “habitable” worlds but we don’t know what factors are needed for life. There are lots of reasons to search for planets around other stars—exoplanets. A big one is to find other ...

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 ...

There are a couple of ways that scientists can date planets, so which planets formed first in our solar system? When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

New Scientist. In each episode, hosts Leah Crane and Chelsea Whyte explore what would happen if they were given cosmic powers ...