On Sept. 23, a spacecraft will launch with a clear mission — to keep a constant watch on the sun to help protect Earth from ...

NASA’s Interstellar Mapping and Acceleration Probe (IMAP) completed its Flight Readiness Review on Sept. 18, which certifies its readiness to initiate final launch preparation activities. IMAP is ...

"The results reported here can be crucial when down-selecting which samples, if not all, are returned to Earth." ...

After the $17 billion EchoStar deal, SpaceX requests to build a constellation of 'up to 15,000' satellites to bolster its ...

Because of the sun's positioning in the days just before, during and after the equinox, those looking down east-west roads in Chicago and the suburbs will be able to see the sun framed by much of the ...

NASA scientists say a rock sample collected by the Perseverance rover in Jezero Crater may contain the strongest signs yet of ...

Mars may have released sulfur gases that trapped heat, shaped the climate, and created conditions for ancient life.

One of the studies, led by Dr. Aleksandra Sokołowska of Brown University and Imperial College London, has identified 258 ...

Regulus, a distant star, Venus and our moon will be visible during a conjunction tonight, and how Californians can best see it.

Since astronomers found the first planets outside our solar system in 1992 and the first planet around a sunlike star in 1995 ...

A new NASA mission will capture images of Earth's invisible "halo," the faint light given off by our planet's outermost atmospheric layer, the exosphere, as it morphs and changes in response to the ...

The bottom half of the world, known as the Southern Hemisphere, is about to be treated to a partial solar eclipse that won't be visible in the US.