My telescope, set up for astrophotography in my light-polluted San Diego backyard, was pointed at a galaxy unfathomably far from Earth. My wife, Cristina, walked up just as the first space photo ...

As SpaceX and NASA gear up for the Crew-12 launch from Cape Canaveral in Florida early on Friday morning, its colleagues at United Launch Alliance (ULA) are just hours away from sending the Vulcan ...

Light is the fastest phenomenon in the universe, clocking in at just under 300,000 kilometers per second. The telescopes that observe that light, from radio waves to gamma rays, are built at rather ...

NASA astronaut Don Pettit has shared a new time-lapse video showing some of SpaceX’s Starlink satellites streaking across space. Other lines of light appearing in the 18-second clip captured from the ...

"A cloud of energetic particles this large has never been observed in this galaxy cluster or any other." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...