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 ...
Light, whether from a star or your flashlight, travels at 186,000 miles per second. Artur Debat/Moment via Getty Images My telescope, set up for astrophotography in my light-polluted San Diego ...
On August 21, 2025, a small but powerful space plane will once again head into orbit, carrying with it experiments that could redefine how humans travel through space. The X-37B, a reusable orbital ...
Nothing traveling through space is faster. To put that into perspective: In the time it takes you to blink your eyes, a particle of light travels around the circumference of Earth more than twice. As ...
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