The launch window for NASA's Lucy mission launch window opens on Saturday (Oct. 16). Here are some Lucy-inspired craft activities to keep you occupied until then.
REFERENCE The space shuttle Columbia broke up on Feb. 1, 2003, killing its seven-member crew. An investigation led to changes in NASA procedures.
Learn about the composition and orbit of comets, as well as the history of their discovery, famous comets and space missions to analyze them.
The Grand Canyon is missing one billion years' worth of rocks, and the breakup of the ancient supercontinent Rodinia may be responsible, according to a new study.
Former cosmonaut Svetlana Savitskaya was the second woman to go to space, the first woman to perform a spacewalk and the first woman to go to space twice.
Earth is spherical, but what would happen if the Earth were flat? We explore some of the bizarre implications of a flat world which would make life as we know it virtually impossible.
Join astronaut Terry Virts as he discusses what matters on planet Earth with a range of interesting guests
What's the weather like on other worlds? Expect methane rain, global haboobs and a 10,000-mile-wide hurricane.
Two decades' worth of Antarctic research reveals 5,200 tons of extraterrestrial dust lands on Earth each year.
NASA's long-serving Hubble Space Telescope is seeing double after detecting two rare pairs of quasars nestled within galactic collisions that occurred 10 billion years ago.