While SpaceX lost the upper stage of its new Starship in a flight test, the futuristic spacecraft presages a spaceflight revolution, says a leading U.S. space scholar.

NASA's Curiosity rover has made a groundbreaking discovery on Mars by uncovering pure sulfur crystals within a broken rock.

This January and February, a rare planetary alignment featuring Venus, Mars, Jupiter, Saturn, Uranus, and Neptune will be ...

While SpaceX is not the sole new launch company, it has set the pace for reducing the cost and increasing the reliability of space launches.

It’s divided into sections with names like “Lunar Lunch” and “Extraterrestrial Dinner,” because why settle for boring old ...