Scientists may have discovered a dwarf planet far beyond Neptune — an unearthing that may disprove a longstanding theory ...

NASA confirms the existence of TOI‑1846 b, a nearby hot super-Earth that could contain water, initially observed by NASA's ...

The dwarf planet also has one provisional moon, which is nicknamed MK 2. Discovery: March 31, 2005. Size: 888 miles in diameter (1/9 the size of Earth) Distance from sun: 4.3 billion miles.

What this means within the broader search for Planet Nine will likely be determined by Chile's Vera Rubin Observatory, which is expected to go online later this year. Tagged In Dwarf Planets ...

In December 2003, the Hubble Telescope spotted something peculiar on the surface of Ceres, a dwarf planet in the asteroid belt between Mars and Jupiter. Hazy images revealed something bright and ...

Pluto, the largest of those dwarf planets, has a diameter of about 1,477 miles (2,377 km). The mass of 2017 OF201 is estimated to be about 20,000 times smaller than Earth's and 50 times smaller ...

Purple Planets, Not Green Ones, May Be Key To The Search For Alien Life. By ... (aka red dwarf) star that's cooler compared to our sun, a G-type (aka yellow dwarf) star. ...

Over the past decade, researchers have been puzzling through Pluto’s mysteries. Meanwhile, the New Horizons probe heads for interstellar space.

Dwarf planets are big this month. Writing for Space.com, Starry Night Education's Geoff Gaherty points out that two of the best-known dwarf planets, Pluto and Ceres, are in prime positions for ...