IMAGE: An artist’s impression of a free-floating planet. Using observations and archival data from several of NSF’s NOIRLab’s observatories, together with observations from telescopes around the world ...

A surprisingly mature spiral galaxy named Alaknanda has been spotted just 1.5 billion years after the Big Bang—far earlier ...

The Pandora Space Telescope will study 20 promising worlds that could host life ...

Some 2,600 light-years from our own Solar System dwells one of the most peculiar planetary systems in the entire galaxy. Called Kepler-51, the Sun-like yellow dwarf star was found in 2012 to have ...

LOS ANGELES - The Milky Way is home to at least 17 billion planets that are similar in size to Earth, a new estimate suggests. That's more than two Earth-size planets for every person on the globe.

The search for intelligent life in our galaxy is shifting from abstract speculation to detailed cartography, as researchers ...

Even the best telescopes can’t see exoplanets. It’s all about watching for jiggly stars, blue shifts, and transits.

(AP) Our Milky Way is home to at least 17 billion planets that are similar in size to Earth, a new estimate suggests. That’s more than two Earth-size planets for every person on the globe. Just how ...

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June's full moon, nicknamed the strawberry moon, will shine brightly on Tuesday night and Wednesday morning. The moon will be at its fullest at 3:44 a.m. ET Wednesday but will still appear bright and ...

(CNN) — June’s full moon, nicknamed the strawberry moon, will shine brightly on Tuesday night and Wednesday morning. The moon will be at its fullest at 3:44 a.m. ET Wednesday but will still appear ...

Get ready to look up — the Milky Way will be visible in Arizona’s night sky over Memorial Day weekend. This awe-inspiring sight is a massive spiral of stars, dust and gas stretching over 100,000 light ...