John Casani spent more than half a century turning speculative ideas about distant worlds into working spacecraft that could survive the trip. His quiet influence at NASA’s Jet Propulsion Laboratory ...

Elon Musk's new AI-powered encyclopedia, Grokipedia, isn't just a wiki rival it's a grand vision for preserving human knowledge across the cosmos.

Monroeville Public Library is holding a three-part children’s series on space, where participants learn fun facts about the sun, planets, stars and asteroid belt. The first session this month was ...

A newly discovered object speeding through our solar system is sparking excitement among astronomers because it’s not from around here. Believed to be a comet, the object is only the third celestial ...

For the past several weeks, and for the next week or two to come, you will be treated to a rare astronomical sight simply by gazing up at a clear westward sky an hour or so after sunset. Five ...

One year ago, NASA’s Voyager 2 probe became just the second human-made object in history to exit the solar system and officially enter interstellar space. Voyager 2 was launched on August 20, 1977—16 ...