Research suggests that an ancient shoreline helped to sculpt the drop between Mars' southern and northern hemispheres.

In the United States, funding for planetary defense has long had strong bipartisan support both inside and outside of ...

New research reveals ancient ripples on Mars, providing compelling evidence of long-lost lakes that once existed 3.7 billion ...

Venus, Saturn, Jupiter and Mars will appear to line up and be bright enough to see without a telescope or binoculars — and ...

The data used to create the image is from a Hubble Space Telescope project to capture and map Jupiter's superstorm system.

Sky watchers are in for a treat this month as the stars align to give amateurs a shot to see six planets at once.

For much of January and February, you have the chance to see six planets in our solar system after dark, although two — Uranus and Neptune — will be hard to see without a telescope or high-powered ...

Ancient ripples suggest a warmer, wetter past for the Red Planet that supported open water on its surface.

Skywatchers can spot Venus, Saturn, Jupiter and Mars in the night sky with the naked eye, but two other planets might need a ...

The case of mistaken identity was quickly resolved, but astronomers say it shows the need for transparency around craft in ...

Look, up in the sky, it's multiple planets. Throughout January, a quartet of planets are visible to the naked eye — Venus, Saturn, Jupiter and Mars — according to NASA. "Jupiter, Saturn and Mars ...

"A parade of planets, also sometimes referred to as a planetary alignment, is when several planets in our solar system appear ...