The Voyager 2 spacecraft burst out of the bubble of gases expanding from the sun and into the wild of the Milky Way a year ago. It was the second spacecraft to cross that boundary and directly observe ...

When I see planets in the night sky, I think of them as old friends. I know, I know — I need to get out more, but my oldest ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The NASA team ...

NASA unveiled a new discovery inside our solar system. We had only seen these big lakes filled with water on Earth - but this ...

Twenty-five years ago this week, NASA's Voyager 2 probe began its epic, ongoing space odyssey, a voyage of discovery that many consider humanity's greatest feat of pure space exploration. Zooming past ...

In 1977, NASA launched Voyager 1 and 2 on a mission to explore the outer planets. Now, over 45 years later, these incredible probes are detecting something mysterious beyond the edge of our solar ...

Twenty-five years ago this week, NASA's Voyager 2 probe began its epic, ongoing space odyssey, a voyage of discovery that many consider humanity's greatest feat of pure space exploration. Zooming past ...

On this date, Jan. 13, 1986, astronomer Stephen Synnott using data collected by NASA’s Voyager 2 probe discovered three additional moons in orbit around Uranus. Those moons are Desdemona, Rosalind and ...

Uranus, the third-largest planet in our solar system, has always been something of an enigma. Now, it seems that our understanding of the planet — garnered mostly from a flyby by a NASA spacecraft ...