Thousands of mounds and hills in Mars' barren northern plains are full of clay minerals, providing evidence that the rocks here were once soaked with water, a new study reveals. These mounds are all that is left of a landscape,

Mars is home to perhaps the greatest mystery of the solar system: the so-called Martian dichotomy, which has baffled scientists since it was discovered in the 1970s.

With Donald Trump now back in the White House, SpaceX's Elon Musk is more excited than ever about the prospect of his company putting the first humans on Mars.

A collection of Martian rocks could reveal details about potential past life on the Red Planet – but first NASA has to get them back to Earth.

Donald Trump's bizarre inauguration day was packed with gaffes, executive orders and a number of unexpected celebrity appearances - here are some of the moments you may have missed

In his 29-minute Inaugural Address, Trump promised to defeat inflation and to “end the chronic disease epidemic.” He promised national power so great that it could “stop all wars,” and expand the nation’s territory. He even promised to “restore American promise.”

Bruno Mars’ “When I Was Your Man” returns to both the Billboard Global 200 and the Billboard Global Excl. US, joining several other smashes from the crooner.

Famous faces and thousands of Americans flocked to US capital Washington DC, braving conditions that have chased the ceremony indoors, to watch Donald Trump become the 47th President

From windswept craters to frigid ice caps, explore Martian landscapes through the eyes of NASA’s orbiters, probes and rovers

Mars has northern and southern hemispheres like Earth, but their defining characteristics are markedly different, a phenomenon known as Martian dichotomy. The Southern Highlands are older, higher in elevation and more cratered than the Northern Lowlands.

Formations that look like jumbo-sized kidney beans (or blobs of chocolate syrup, depending on your palette) may be indicators of whether Mars was habitable in the distant past.