Explore decades of incredible images and videos of stars, planets, moons, and galaxies—most of which are free to use and share.

NASA is marking the United States' 250th birthday with four striking red, white, and blue images of deep space from the Chandra X-ray Observatory. The collection features an exploded star, a stellar nursery,

A team of astronomers has discovered that the spiral arms of the Milky Way galaxy may stretch further out into space than was previously known. The scientists made precise distance measurements of dust clouds in the arms using data from two telescopes orbiting high above Earth’s atmosphere — NASA’s Chandra,

Following an initial frenzy a decade ago, the commercial space sector is getting a new wave of investment. This time, things are markedly different, experts say.

Space agency selects 37 companies as partners to develop technologies that will support moon bases and Mars exploration.

NASA has received one of the most unusual-looking pieces of hardware ever associated with the Artemis III program, and despite its striking resemblance to a classic flying saucer, its mission is entirely grounded in engineering.

The spacecraft has been in LA since 2012, but now it's moving to a new permanent home at the California Science Center.

NASA's Inspector General has released a report warning that issues with Boeing's Starliner spacecraft remain unresolved years after its last flight.