NASA announced the first class of astronauts in four years who could one day be eligible for missions to the moon and Mars.

NASA will announce the first class of astronauts in four years who could one day be eligible for missions to the moon and Mars.

NASA will announce the first class of astronauts in four years who could one day be eligible for missions to the moon and Mars.

Saturn will put on a show for professional and backyard astromers alike, and be the brightest and closest it has been to ...

Scientists May Have Found Signs of a Hidden Universe on the Ocean Floor ...

See the iconic Pillars of Creation in this 3D visualization created from James Webb and Hubble Space Telescope data. Credits ...

The moon and Venus will shine vividly alongside a bright star in the early morning in a celestial rendezvous that should be visible across the U.S.

Milky Way season in the US is coming to an end, but the iconic band of stars, our galaxy's center, should still be visible for awhile.

You still may be able to spot the Milky Way's galactic center in the night sky across the US, but time is running out.

The moon and Venus will shine vividly alongside a bright star in the early morning in a celestial rendezvous that should be visible across the U.S.

Three celestial bodies are about to meet up for one night in September in a conjunction that should be widely visible in the U.S. – including Florida.