Astronomers have discovered four planets that are just a fraction of the mass of Earth orbiting Barnard’s Star, which is 6 ...

well after the last lineup, Pluto would have been considered a planet. The far-flung outcast would have been impossible to squeeze into the group photo, they said.

Just after sunset on Feb. 28 ... nine if you count dwarf power planet Pluto. Because we live on Earth, the maximum number of planets we can see from our vantage, for now, is seven — or eight ...

Astrologers anticipate a new era as Neptune leaves Pisces for Aries, marking a significant shift in energetic themes.

The relative quantities of volatile gases like methane and ethane can reveal key details about distant Kuiper Belt objects.

"There really is something very different about how these giant planets form versus how small planets like Earth form." ...

In 2006, the International Astronomical Union (IAS) reclassified Pluto as a dwarf planet. That decision came several years after discovering the Kuiper Belt, a ring of icy and rocky objects 2.8 ...

Astronomers have made an exciting breakthrough by discovering four sub-Earth exoplanets orbiting Barnard’s Star, our closest ...

You may recall that Pluto was reclassified as a ... Timing is crucial. The planets will only be visible for about 90 minutes after sunset before some begin to fade from view.

Stars glow in the sky after sunset at Black Balsam ... A great or full planetary alignment features all solar system planets, and sometimes Pluto. Astronomers provide a realistic depiction ...

including Pluto, Ceres, Eris, Haumea and Makemake. Grad student discovers planet orbiting around nearby star, astronomers say The next chance to catch a planetary alignment after this month ...