On Sept. 2, 2016, the European Space Agency finally located Philae, its long-lost comet lander. [‘On This Day in Space’ Video Series on Space.com] Philae is a spacecraft about the size of a washing ...

Astronomers have spent nearly two decades chasing the origins of long-period transients, mysterious radio bursts that repeat at unusually long intervals. Despite cataloging a dozen of these deep-space ...

After an eight-year journey, a spacecraft carrying European and Japanese probes began the monthslong, high-risk approach to Mercury on Thursday to study the sun-scorched planet. The BepiColombo ...

Mercury, the closest planet to the sun, is extremely difficult to study up close. In fact, just one spacecraft, NASA’s MESSENGER, has ever orbited the planet. But soon a second mission will begin ...

I don’t know about you, but my God is about to get even bigger and my theological beliefs even more challenging thanks to, of all people, Elon Musk. His company, SpaceX, has just launched a rocket ...

The spacecraft is currently approaching the outer boundary of the solar system as it prepares to cross into interstellar space. Reading time 3 minutes An iconic NASA probe is currently around 6 ...

CAPE CANAVERAL—NASA opened a new chapter in the exploration of the structure and evolution of the universe with the launch of a new flagship observatory that also will test technology to directly ...

A Mars probe from the Japan Aerospace Exploration Agency (JAXA) may answer some longstanding questions about the Red Planet and its moons. The mission—dubbed MMX for “Martian Moons eXploration”—aims ...

NASA released this simulated image of 1/140th of Roman’s view of the central bulge of the Milky Way galaxy. Credit: NASA NASA is opening a new chapter in the exploration of the structure and evolution ...

NASA launched its $4.3 billion Nancy Grace Roman Space Telescope on Sunday, beginning a mission expected to last five to 10 years. The telescope lifted off aboard SpaceX’s (SPCX) Falcon Heavy rocket ...

CAPE CANAVERAL, Fla. (AP) — NASA’s newest crown jewel blasted off Sunday to hunt for planets around other stars, explore secret dark energy and survey the cosmos like never before. SpaceX launched the ...