Astronomers are sounding alarm bells as the world's most precious sky-observing location faces a risk of being blinded by light pollution due to a planned renewable energy project. The U.S. energy ...

The European Southern Observatory's Extremely Large Telescope is set to have full scientific operations commencing by ...

On a mountaintop in northern Chile, the world’s largest digital camera is preparing to power up. Its mission is simple yet ambitious — to photograph the entire night sky in extreme detail and unlock ...

CAPE CANAVERAL, Fla. — Telescopes around the world have spotted a monster radio jet streaming from a quasar dating back to the first 1 billion years of the universe. At double the width of our Milky ...

One of the reasons astronomers like to put telescopes in space is that the “seeing” is better. With no turbulent atmosphere in the way the stars shine steadily, rather than twinkling as they do when ...