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SpaceX launched a double moon mission today (Feb. 26), sending a private lunar lander and a NASA orbiter to hunt for signs of water on Earth's nearest neighbor.

Astronomers were surprised to see the behavior of ultrafaint dwarf galaxies located in the Hydra cluster.

Among other changes, Vanessa Wyche, who previously led Johnson Space Center, has been named NASA's acting associate administrator.

Observations from the European Southern Observatory's Very Large Telescope helped show that the expected trajectory of asteroid 2024 YR4 poses nearly zero risk of impacting Earth in 2032.

In March 2025 we have a fine opportunity to view the planet that many astronomy guide books refer to as the most difficult of the naked-eye planets to see: Mercury.

Australian company Gilmour Space has announced a launch window of no earlier than March 15 for its first-ever orbital launch attempt.

The best solar viewing gear available for the next solar eclipse. Spy the best solar glasses, filters, telescopes and binoculars.

Space.com's image of the day rounds up the most awe-inspiring space photos right here, with a new image everyday.

The Lucy mission to Jupiter's Trojan asteroids is currently cruising through the Asteroid Belt, and will fly close to asteroid Donaldjohanson in April.

On Feb. 23, 1990, NASA's Pioneer 11 spacecraft left the solar system!