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We are galaxy stuff
A new study - based on supercomputer simulations - reveals that each one of us may be made in part from matter that passes from one galaxy to another.
July 27, 2017
Watch launch of new ISS crew July 28
Live launch coverage from Kazakhstan begins at 10:45 a.m. EDT (14:45 UTC). You can also watch the spacecraft dock with the ISS, starting at 5:15 p.m. EDT (21:15 UTC).
July 26, 2017
Close shave from an undetected asteroid
Whoosh! Astronomers discovered a small asteroid - now designated as asteroid 2017 OO1 - on July 23. That was 3 days after it passed 1/3 the moon's distance from Earth.
July 25, 2017
How many distant comets?
Mysterious long-period comets might be more common - and bigger - than astronomers thought. Studies like this one will help reveal what kind of hazard they might pose.
July 25, 2017
Haze on Saturn’s horizon
Spectacular recent image from the Cassini spacecraft, now in its Grand Finale year around Saturn, taken from just above Saturn's cloudtops, showing haze on the planet's horizon.
July 25, 2017
Hubble sees Phobos orbiting Mars
This image and video aren't artists' illustrations. They're from a real time-lapse sequence of images - acquired by the Hubble Space Telescope - of the tiny moon Phobos orbiting Mars. Cool!
July 22, 2017
Have you seen the Mayak satellite?
On July 14, an amateur group in Russia launched a small satellite called Mayak. They said it would become the "brightest shooting star" in the sky. Why'd they do it? Here's how to look for it.
July 18, 2017
Soar over Pluto and Charon
To celebrate the 2-year anniversary of New Horizon's flyover of the Pluto system, NASA released these 2 cool videos. Sail over the surface of Pluto and its large moon Charon.
July 17, 2017
Peering toward the Cosmic Dark Ages
During the Cosmic Dark Ages, our universe matured from a primordial soup of neutral gas to the star-filled cosmos we see today. A new study probes this mysterious time.
July 16, 2017
No commands to Mars craft in late July
NASA says to blame the sun for its moratorium on sending commands to Mars from July 22 to August 1.
July 15, 2017
