Each of the outer solar system's giant planets is accompanied by ... space along fissures in its southern hemisphere — a sure sign of liquid water lurking just beneath the moon's thin, icy ...

The location of the solar system's outer boundary is a point of contention among astronomers. There are three possible candidates, which "all have merit." But which one is best? When you purchase ...

If you were to look at a giant picture of space, zoom in on the Milky Way galaxy, and then zoom in again on one of its outer spiral arms, you’d find the solar system. Astronomers believe it ...

So exactly how many solar system moons have we found? The answer, it turns out, depends on your definition of a moon. But this is likely just "the tip of the iceberg," Edward Ashton, an astronomer ...

Take, for example, the solar system. If you picture it in your head, you likely see the sun in the center and a retinue of planets orbiting it. At some point, perhaps around four billion to five ...

It was a missed opportunity. What was poorly communicated as a demotion was actually the discovery of new exciting members of our Solar System, of which Pluto was the first. The good news is ...

How our own Solar System came to be? How we could know? Telescopes, microscopes, spectrometers, and gravitational wave detectors all help to piece together the deep history of our Solar System.

Astronomers have discovered a rare in-sync solar system with six planets moving like a grand cosmic orchestra, untouched by outside forces since their birth billions of years ago. The find ...