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 ...

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

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

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

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

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

Strange, dark streaks on Martian slopes that once hinted at flowing water are now believed to be dry dust slides, revealed ...

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

Elon Musk will address thousands of SpaceX employees in Texas on Tuesday, May 27. Here's how to watch the talk from home.

The more significant surprise over the past decade has been the shift in Musk’s politics and his controversial rise to ...

The SpaceX CEO bailed on a company discussion about colonizing Mars, an otherwise favorite topic for the billionaire.