Some people in town today for the Yakima River Canyon Marathon may have been looking for a little running inspiration.

Everyone's favorite dwarf planet, Pluto, was discovered just 95 years ago. Here's the story of how the once-ninth planet was ...

A surprising chemical difference between Pluto and Sedna, another dwarf planet in the distant Kuiper Belt, is helping scientists nail down their respective masses, a new study reports. The Kuiper ...

Why was Pluto reclassified as a dwarf planet? One might think that it’s purely a matter of size. Mercury, the smallest of the major planets, has a diameter that is twice as large as Pluto’s.

"There really is something very different about how these giant planets form versus how small planets like Earth form." Scientists have used data from NASA's retired planet-hunting space telescope ...

This artist’s impression shows a planet (left) that has approached too close to a white dwarf (right) and been torn apart by tidal forces from the star. The white dwarf is in the center of a planetary ...

The first time you may have heard the term ‘dwarf planet’ was when Pluto got demoted to one in 2006 (RIP). However, we actually have six in our Solar System. Pluto, Ceres, Makemake, Haumea, and Eris ...

A combination of the world's most powerful telescopes detected the planets. Astronomers have confirmed ... a low-mass red dwarf, was discovered in 1916. Since then, astronomers have discovered ...

To do it, he developed a model that simulated an Earth-like planet orbiting a white dwarf. He modeled the orbiting Earth-like planet as the habitable zone devolved, noting how much energy it ...

Monday’s Ceres-1 rocket was the second produced at Galactic Energy’s research and development and production base for new-generation solid-propellant rockets in Ziyang, Sichuan Province.

Today: Mercury and Venus, the brighter of the two, are about a half a fist above the western horizon at 8 p.m. Sunday: If you want to put somebody off, tell her or him to wait until Deneb sets. At ...

The surfaces of red dwarf stars are rife with magnetic storms. This activity can mimic the signature of a planet when there isn’t one there. The task of finding planets by this method starts ...