This image features a deep field view of the Cassiopeia constellation immersed in the glow of ionized hydrogen gas, where the ...

April skies feature close planet pairings, a bright meteor shower, and stunning views of the ancient star cluster M3.

The stars as seen from Earth would have looked dimmer 14 million years ago, as the solar system was in the middle of passing ...

Visible to the naked eye, Mercury should be seen in the western sky at twilight, according to the Old Farmer’s Almanac. The first planet in the solar system is expected to be at its greatest ...

A partial solar eclipse rises behind clouds on June 10, 2021, in Arbutus, Md. (AP Photo/Julio Cortez) ...

If you look up on a clear night, the brightest and largest object in the sky will probably be the ... So exactly how many solar system moons have we found? The answer, it turns out, depends ...

The most elusive planetary aurora in the Solar System has finally been revealed in all its gently glowing glory.

Even though Venus moves between the Earth and sun every 19.5 months, it becomes visible after sunset and before sunrise only ...

Along with the finding, Maconi also told New Scientist that the sky would have looked very different to anyone looking out from Earth when our Solar System passed through the Radcliffe wave.

A new classification scheme may help us better understand planet formation — including the history of our own family of worlds.

The findings provide strong evidence that four giant exoplanets 130 light-years from Earth formed much like Jupiter and ...