For decades, astronomers have searched for signs of extraterrestrial intelligence using radio telescopes and optical instruments, scanning the skies for artificial signals. Now, researchers are taking a different approach, ...
Astronomy
Aug 13, 2025
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72
A NASA technology experiment on the International Space Station completed its first laser link with an in-orbit laser relay system on Dec. 5, 2023. Together, they complete NASA's first two-way, end-to-end laser relay system.
Space Exploration
Dec 14, 2023
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8
The Space Force is giving a nearly even share of 21 upcoming national security launches between SpaceX and United Launch Alliance.
Space Exploration
Nov 1, 2023
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NASA is demonstrating laser communications on multiple missions—showcasing the benefits infrared light can have for science and exploration missions transmitting terabytes of important data.
Space Exploration
Oct 26, 2023
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37
A small team of political scientists and astronomers at the University of British Columbia has conducted a study of the number of filings to the International Telecommunication Union (ITU) by entities wishing to send satellites ...
NASA uses the International Space Station—a football field-sized spacecraft orbiting Earth—to learn more about living and working in space. For more than 20 years, the space station has provided a unique platform for ...
Space Exploration
Aug 30, 2023
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1
Last year, scientists drove up Mauna Loa volcano on Hawai'i, aimed a laser at a reflector positioned on Haleakala peak on Maui, and beamed rapid pulses of laser light through 150 kilometers of turbulent air. While the pulses ...
General Physics
Jun 21, 2023
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31
On Feb. 10, 2009, disaster struck hundreds of miles above the Siberian Peninsula. That evening, a defunct Russian satellite orbiting Earth crashed into a communications satellite called Iridium 33 moving at a speed of thousands ...
Space Exploration
Jun 1, 2023
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After a week of stormy weather delays, SpaceX waited just a bit longer but managed an early Saturday liftoff of a satellite to knock out the Space Coast's 26th launch of the year.
Space Exploration
May 29, 2023
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13
You can spot "GEOSat' satellites in far-flung orbits… if you know exactly where and when to look.
Space Exploration
Mar 19, 2021
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33
