As satellites crawl across the sky, they reflect light from the sun back down to Earth, especially during the first few hours after sunset and the first few hours before sunrise. As more companies ...

It's been about 30 years since NASA astronauts saved the Hubble Space Telescope on an immensely daring mission. At the time, it was perhaps the most daring mission scientists had conceived of.. In ...

The Hubble Space Telescope has captured the best picture yet of a high-speed comet visiting our solar system from another star. NASA and the European Space Agency released the latest photos Thursday.

GREENBELT, Md. – Scientists working at NASA’s Goddard Space Flight Center in Greenbelt, Md., have concocted an innovative recipe for giant telescope mirrors on the Moon. To make a mirror that dwarfs ...

One Maunakea telescope has been partially removed, but the building that housed it will remain standing until next year. After months of delays, workers began taking apart CSO’s telescope in June, and ...