NASA's Europa Clipper spacecraft, en route to Jupiter's icy ocean moon Europa, recently captured a ghostly infrared portrait ...

On Earth, the most dangerous ultraviolet radiation for living organisms - UV - is blocked by the ozone layer. However, on Mars, the thin atmosphere, almost devoid of ozone, allows ...

The Donald Trump administration's budget proposal has sparked concerns at NASA as it could lead to cancellation of several major missions. One of these missions is the Mars Sample Return which has ...

In a major development for space exploration, scientists have found strong signs of liquid water beneath the surface of Mars.

The company town built America. Elon Musk is betting it can colonize Mars and save humanity, too. The latest step in Musk’s ...

On Feb. 27, 1988, the first of my weekly columns on stargazing appeared in print. More than 1.5 million words later, I sit ...