Do you know which planet is called the green planet of the solar system? This ice giant contains a large amount of methane gas, which absorbs red light and reflects blue-green light. Learn about its ...

Explore the vast distances between planets and objects in our solar system, and why most of the space around us is a wide ...

Astronomers witnessed planets colliding 11,000 light-years away, an event that could shed light on the collision that created ...

Venus and Saturn are due up for a visually striking event known as a planetary conjunction. Here's everything to know about ...

A century after Robert Goddard’s first-ever launch of a liquid-fueled rocket, two NASA experts weigh in on what his legacy ...

NASA’s twin ESCAPADE spacecraft will uncover how the Sun stripped Mars of its atmosphere. Mars is a very different world ...

Six planets are set to align on Saturday, creating a planetary parade that will be visible to sky-gazers across the globe.

Satellite views and space telescopes allow scientists to see amazing wonders, such as sand seas in the Namib Desert, "spiderweb" formations on Mars, and even distant nebulae. Sometimes, though, a ...

Astronomers have uncovered evidence of a dramatic cosmic crash unfolding around a distant star. While reviewing archived ...

Mars didn’t always look like the barren world we see today. Over billions of years, the Sun’s solar wind stripped away much of its atmosphere, helping transform it from a warmer, wetter planet into a ...

What happens when a solar superstorm hits Mars? Thanks to the European Space Agency's Mars orbiters, we now know: glitching spacecraft and a supercharged upper atmosphere.