Each year in northern Pennsylvania, hundreds of stargazers attend gatherings under increasingly rare dark skies to look for faint galaxies, star clusters and nebulae.
NPR's Ari Shapiro talks with hosts of NPR's science podcast, Short Wave about Saturn's moon Enceladus, a tiny 'quasi-moon' near Earth's orbit, and how spaceflight affects astronauts' brains.
Chemical physicist Stafford Sheehan invented a process that can turn carbon dioxide into yeast. It's now a finalist in the NASA-sponsored Deep Space Food Challenge.
U.S. Poet Laureate Ada Limón has written a poem that will fly on NASA's Europa Clipper, which will explore one of Jupiter's moons. And you can add your name to the poem.
On Friday afternoon, spectators had a chance to see the most current images of Mars possible — which take 3 to 22 minutes to reach Earth — courtesy of the European Space Agency.
Boeing was set to launch its first astronauts into space next month. But engineers found flammable tape and problems with the capsule's parachutes. The Starliner program has been plagued by delays.