General Galactic is aiming to fly a satellite using a water-powered propulsion system. “There is still a great deal of work ahead to prepare for this historic mission.” Venus may be hiding a vast ...

A fresh examination of radar data for Venus obtained by NASA's Magellan spacecraft in the 1990s indicates the presence of a large underground cavity created by a lava flow, the first subsurface ...

New research suggests that the heart of the Milky Way may be dominated by a dense clump of dark matter rather than the supermassive black hole Sagittarius A*.

Artemis 2 will be the first mission to carry humans to the moon's vicinity since 1972. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Breaking ...