A U.S. scientist searching for a civilization across 7 Earth clones circling the red dwarf star TRAPPIST-1 says its own alien ...

The so-called 'planetesimal belts' are filled with tiny millimeter-sized particles created by collisions between comets.

The eight major planets of our Solar System orbit the Sun in the same flat plane ... But when you're looking at these objects ...

15, 2025 — New observational data and simulation models have confirmed a new type of planet unlike anything found in the Solar System ... planet hurtling through space. One of these chunks ...

BS4 may be anywhere between 17 and 40 feet across, and will approach at about twice the distance between the Earth and moon.

Scientists studying samples that NASA collected from the asteroid Bennu found a wide assortment of organic molecules that ...

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 ... Mars satellite images could point ...

Researchers analyzed SDO footage of the coronal loops preceding 50 solar flares. This video shows the flickering in a loop from 2011 in four different wavelengths of ultraviolet. (Image credit ...