The planets are all too hot for life as we know it, but astronomers haven’t given up searching for more planets in Barnard's ...
Life could have the time and energy to arise and prosper on Earth-like worlds in the rapidly shrinking "Goldilocks zones" ...
For the better part of a century, we believed there were nine planets in our solar system, with Pluto being the farthest from the sun. Since the discovery of more Pluto-sized dwarf planets, that ...
Each of the planets, labeled b, c, d, and e, has a mass between 20% and 30% of Earth's, making them among the smallest yet ...
Why was Pluto reclassified as a dwarf planet? One might think that it’s purely a matter of size. Mercury, the smallest of the ...
A surprising chemical difference between Pluto and Sedna, another dwarf planet in the distant Kuiper Belt, is helping ...
A decades-old cosmic mystery may finally be solved. Scientists now suspect that the strange X-ray glow from a distant white dwarf is the result of a planet being ripped apart and devoured by the dying ...