Firefly’s Blue Ghost Mission 1 is making strides toward the Moon, with NASA’s SCALPSS 1.1 successfully capturing ...

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

NASA has explored the space beyond Earth and our solar system with spacecraft like Voyagers 1 and 2, and how we’ve discovered thousands of exoplanets with space telescopes like Kepler and TESS. Credit ...

NASA’s Voyager mission completed humankind’s first close-up exploration of the four giant outer planets of our solar system.

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...