Why the Odds of an Asteroid Striking Earth in 2032 Keep Going Up (and Down)

Since December, astronomers have been carefully studying whether an asteroid between 130 and 300 feet long…

NASA Gave Up a Ride to the Moon. This Startup’s Rover Took It.

NASA’s second thoughts about VIPER opened an opportunity for someone else to book that ride to…

Grand Canyons on the Moon Were Made in a Matter of Minutes

Two canyons near the south pole of the moon rival the Grand Canyon, both in depth…

NASA Astronaut Recruitment Faces Trump’s Moves Against D.E.I.

Since 1978, every new group of NASA astronauts has included women and usually reflected a multiplicity…

Overlooked No More: Annie Easley, Who Helped Take Spaceflight to New Heights

This article is part of Overlooked, a series of obituaries about remarkable people whose deaths, beginning…

Asteroid 2024 YR4 Could Strike Earth, Researchers Say, But the Odds are Small

You may hear about a large asteroid headed toward Earth. Don’t panic. Just after Christmas Day,…

Life’s Building Blocks Lurked Inside NASA’s Bennu Asteroid Samples

Our solar system contains planets, dwarf planets, asteroids and comets — but only one world is…

Elon Musk Suggests SpaceX Will Accelerate Return of NASA Astronauts

In a post on X on Tuesday evening, Elon Musk said President Trump had asked his…

Earth’s Mini-Moon Was Probably a Piece of Its Real Moon

For a few months last fall, a school-bus-size space rock named 2024 PT5 gained fame as…

Trump Orders ‘Iron Dome’ for U.S., but Freezes Funds for Nuclear Protection

Star Wars is back, with an executive order from President Trump that the White House said…