Pluto and Dwarf Planet Resources - NASA Science
Learn more about Pluto and other dwarf planets, which are defined as objects that orbit the Sun and are nearly round, but that have not been able to clear their orbit of debris. The …
Pluto: Exploration - NASA Science
NASA's New Horizons was the first and, so far, the only mission to Pluto. It was also the first mission to explore the solar system's recently discovered "third zone," the region beyond the …
Hubble Spots Moon Around Third Largest Dwarf Planet
May 18, 2017 · Astronomers uncovered a moon orbiting the third largest dwarf planet, 2007 OR10, in the frigid outskirts of our solar system called the Kuiper Belt.
Stories - NASA Science
Using computer simulations, scientists based at NASA have pieced together the story of how the dwarf planet Haumea, found in the Kuiper Belt of icy worlds beyond the orbit of outermost …
Earth-sized planets: The newest, weirdest generation
Feb 21, 2017 · A bumper crop of Earth-size planets huddled around an ultra-cool, red dwarf star could be little more than chunks of rock blasted by radiation, or cloud-covered worlds as …
Moons: Facts - Science@NASA
In the outer solar system, the gas giants Jupiter and Saturn and the ice giants Uranus and Neptune have dozens of moons. As these planets grew in the early solar system, they were …
Day of Discovery: 7 Earth-Size Planets - NASA Science
Feb 22, 2022 · Newspapers around the world printed the discovery on their front pages: Astronomers had found that a red dwarf star called TRAPPIST-1 was home to a close-knit …
Planetary Systems - NASA Science
Since the 1990s, astronomers have found thousands of planets, including stars hosting multiple worlds – true planetary systems. Astronomers refer to a planet beyond our solar system as an …
Kuiper Belt: In Depth - NASA Science
Nov 30, 2017 · Instead, in 2006, the International Astronomical Union created a new class of objects called dwarf planets, and placed Pluto, Eris and the asteroid Ceres in this category. In …
Chapter 7: Death and New Life - NASA Science
When the core of the former red giant has exhausted all of its fuel and shed all the gas it can, the remaining dense stellar cinder is called a white dwarf. The white dwarf is considered “dead” …