The idea of terraforming Mars—essentially reshaping the planet to support Earth life—has captured imaginations for decades.

We were pretty sure even before the first lander grounded on Mars that the red colour of the planet is due to a lot of iron ...

For years, scientists have puzzled over how Mars lost the thick atmosphere it once had. That atmosphere was essential for ...

What if we could turn Mars into a second Earth? A group of scientists is revisiting this audacious idea with new eyes, armed ...

Mars' core formed within just a few million years, scientists say compared to the hundreds of millions or even billions of ...

The second half of the 19th century was a particularly interesting time to imagine Mars. This was a period during which the red planet seemed to be ready to give up some of its mystery. Astronomers ...

Robert Zubrin quite literally wrote the book on why humanity should go to Mars -- so why has the renowned aerospace engineer ...

As a result of the International Astronomical Union’s 2006 demotion of Pluto from planet to dwarf planet, our solar system ...

A crewed mission to Mars would rank among the most complex and costly undertakings in human history -- and US President ...

A series of planets will align in the early morning skies before sunrise through July 4, including Jupiter, Uranus, Mars, Neptune, Saturn, the dwarf planet Pluto and the moon. The rare parade of ...