Follow this section to personalize your feed and get instant alerts. WHY FOLLOW? Update your preferences in Account Settings Personalized Content Follow this tag to personalize your feed and get ...

Astronomers have reported evidence of a massive possible exomoon in the distant CD-35 2722 system, where one giant object orbits another rather than directly circling a star. The discovery, described ...

So far, humanity has yet to find its first "exomoon"—a moon orbiting a planet outside of the solar system. But that hasn't been for lack of trying. According to a new paper by Thomas Winterhalder of ...

In a new study, astronomers detail observations of what could be the first known exosatellite — a natural object orbiting a world beyond our solar system in the same way our Moon orbits Earth. However ...

When humans began exploring our solar system — the moons, planets, asteroids and comets orbiting our sun — we found not all moons were as cold and inactive as our moon. Here’s a tour of some of our ...

Southwest Research Institute (SwRI) scientists used simulations to understand the role disruptive impacts play on icy moons with subsurface oceans in our solar system. A recent paper published in the ...

Add Yahoo as a preferred source to see more of our stories on Google. An artist's conception of the exomoon, foreground, with its planet, center, and its star, left —ESO/M. KORNMESSER What has eluded ...

Humans have been observing distant stars since antiquity. Distant planets, however, have been a different matter. It was not until 1992 that the first exoplanet—or a planet orbiting a star other than ...