Countdowns
Latest Countdowns

The 21 Most Marvelous Moon Missions of All Time
By Clara Moskowitz last updated
Almost 100 missions have been sent to the moon. Here are some of the best.

The 9 most brilliant comets ever seen
By Joe Rao last updated
Nine exceptionally bright "Great Comets" have been visible to the naked eye over the past 300+ years.

Photos: Spectacular comet views from Earth and space
By Space.com Staff last updated
See amazing photos of those dirty snowballs in space: comets.

'Star Wars'! 40 Surprising Facts from a Galaxy Far, Far Away
By Jasmin Malik Chua last updated
In honor of the 40th anniversary of "Star Wars: A New Hope," here are 40 surprising facts about the movie that started it all.

Supermoon Secrets: 7 Surprising Big Moon Facts
By Miriam Kramer last updated
What do you want to know about the supermoon?

The top 10 views of Earth from space
By Space.com Staff published
Humans have sent many missions, both manned and robotic, beyond our planet to explore our neighboring celestial bodies.

Apollo 13 timeline: The hectic days of NASA's 'successful failure' to the moon
By All About Space magazine published
Apollo 13 was NASA's third moon-landing mission, but the astronauts never made it to the lunar surface. Here are the events that transpired.
Get the Space.com Newsletter
Breaking space news, the latest updates on rocket launches, skywatching events and more!