On Oct. 19, 2016, the European Space Agency's ExoMars mission arrived at Mars! ‘On This Day in Space’ Video Series on ...

Scientists have determined the origin of the dinosaur-killing asteroid that struck Earth with tremendous force and caused ...

Differences in the amounts of these trace gases and variations ... orbiting the Sun outside of Neptune's orbit, rather than either the rocky terrestrial planets or the Jovian planets.

In the late 17th century Newton showed that a planet’s orbit could be calculated from ... The computer simulations by Bottke’s team trace the source of those impacts to a now vanished inner ...

Over time, the meteorites that land on Earth will be able to tell the story of events happening 200 million miles away in ...

As early as the 1840s, a tricky calculus foretold the existence of a planet beyond the orbit of Neptune ... the ice giants and causing them to trace errant paths around the sun.

Here's what Hoosiers should know about catching this rare marvel as it zooms above Indiana's skies in October.

Mars experiences a dynamic seasonal change in its ice caps, causing fascinating geological formations. The European Space ...

It is expected to follow a horseshoe-type orbit to become a “mini-moon ... After orbiting around the Earth for a few days, it will leave the planet’s neighbourhood “shortly afterwards ...

This artist's concept depicts a potential volcanic moon between the exoplanet WASP-49 b, left, and its parent star. New ...

The existence of a moon located outside our solar system has never been confirmed but a new NASA-led study may provide ...

It has put a probe called Hope in orbit around the planet, making it only the fifth ... to carry out some novel research. It's going to trace how energy moves through the atmosphere from the ...