Our solar system is much like a trail of microcosmic breadcrumbs: Follow the molecular bits as far back as they go, and you'll learn a thing or two about where many of our planets and other celestial ...

In 2006, Pluto was famously demoted from a planet to a dwarf planet. It remains the most famous dwarf planet today, but there are others in our solar system, including potentially hundreds that ...

While both planets would likely be locked into a synchronous orbit—with a permanent dayside and a perpetual nightside—the ultrafast white dwarf planet's rotation stretches out the cloud circulation ...

More than 50 times further from the Sun than Earth, the tiny dwarf planet Makemake is one of the last places you'd expect to find an intact gaseous atmosphere. Not only is it incredibly cold, being ...

WASHINGTON, Sept 26 (Reuters) - Astronomers using the Hubble Space Telescope have observed a white dwarf - a highly compact stellar ember - that appears to have gobbled up an icy world akin to the ...

The familiar lunar vista humans see when they look up at night reveals a face with dark “seas” and bright craters. The mysterious far side, which wasn’t revealed until humans started sending probes ...