Learn about the bright streaks that may represent recent geological activity on Mercury, which has been considered a dead ...

Earth's moon is both the brightest and the largest object in the night sky, in terms of apparent size, making it a ...

If a Galactic Internet is out there, we may be like fish swimming through the ocean, unaware of the undersea cables carrying ...

The atmospheric carbon dioxide was thought to be the result of the oxidation of oxygen molecules in the exosphere. As a ...

Beginning a little after 9:30 p.m. on Aug. 27, the eclipse will reach its peak at 11:12 p.m., when the greatest portion of ...

The beauty of a sunset is universal, it captivates those on Earth, painting the sky with brilliant colors. But what if you ...

A minor geomagnetic storm may increase northern lights visibility tonight as fast solar wind interacts with Earth’s magnetic field, according to Space.com forecasts.

A repeating fast radio burst has just given up one of its biggest secrets. Long-term observations revealed a rare signal ...

Scientists watched a solar flare grow from tiny magnetic sparks into a violent plasma-raining avalanche on the Sun.

The International Space Station, where astronauts have lived and worked for 25 years, is regularly visible to Earth. Here's ...

The views of the setting sun are just as spectacular from space as they are on Earth.