Four small suitcase-sized spacecraft, designed and built by Southwest Research Institute, have made a final Earth-side pit ...

Six planets are aligning with four visible to the naked eye in late January. Here's how to find them in Michigan.

A rare celestial event where seven planets align is visible in the UK skies. Discover how, when, and where you can observe ...

In Earth’s upper atmosphere, a fast-moving band of air called the jet stream blows with winds of more than 442kph, but they ...

"A parade of planets, also sometimes referred to as a planetary alignment, is when several planets in our solar system appear to line up in the sky from our perspective here on Earth," John Conafay, ...

Astronomers measure a star’s brightness using the apparent magnitude system, where lower values indicate brighter stars.

Astronomers discover supersonic winds reaching 20,500 mph on exoplanet WASP-127b, far surpassing Earth's jet stream and setting a new planetary wind speed record.

Six planets are lining up in a row from our Earthly view of the cosmos, in a spectacle that'll be visible in January through ...

Although they don't impact the surface directly, historical evidence and simulations suggest airbursts can pack a punch.

The six planets were visible in the days immediately leading up to Jan. 21, and for about four weeks afterward. Mars, Venus, Jupiter and Saturn should be visible to the naked eye. You'll need a ...

In Earth's upper atmosphere, a fast-moving band of air called the jet stream blows with winds of more than 275 miles (442 km) ...