The planets in order from the Sun are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. If you include the ...

Size, Orbit, and Strange Movements. Scientists estimate that 2017 OF201 is slightly smaller than Ceres, the smallest known dwarf planet in our solar system, which is about 950 kilometers wide.

A potential new dwarf planet has been discovered in the outer reaches of the solar system, and its existence poses the ...

Earth has a newly-discovered neighbor in the solar system. But the heavenly body – possibly a dwarf planet à la Pluto – isn't a frequent visitor. Located beyond Neptune, its extreme orbit ...

For the dwarf planet candidate, one trip around the sun takes over 24,000 years. Its orbit challenges a proposed path for a hypothetical Planet Nine.

Studies of 15 M-type stars have revealed new insights into the potential presence of exoplanets. A new study led by ...

A possible new dwarf planet has been discovered at the edge of our solar system, so far-flung that it takes around 25,000 years to complete one orbit around the sun. The object, known as 2017 ...

How many Earth-like exoplanets orbit M dwarf stars (Red dwarf stars), which are smaller and cooler than our Sun? This is what ...

Earth has a newly-discovered neighbor in the solar system. But the heavenly body – possibly a dwarf planet à la Pluto – isn't a frequent visitor. Located beyond Neptune, its extreme orbit ...

Image Credit: images of dwarf planets from NASA/JPL-Caltech; image of 2017 OF 201 from Sihao Cheng et al. DOWNLOAD PDF VERSION The Solar System has just gotten a new official member. Currently ...

Astronomers confirm TOI-5573 b, a rare, miniature Saturn-like planet orbiting a small star, challenging theories of planetary ...

OF201, the object belongs to the same all-star family as Pluto: dwarf planets. Its diameter, roughly 435 miles (700 km), is half Pluto’s, ...