Evidence is growing for a ninth planet lurking on the edges of the Solar System. Objects out there move in ways that suggest an unseen world is pulling on them, but new calculations suggest that there is no Planet Nine – these distant objects might just be jostling each other like bumper cars.
Continue Reading
Two new studies have used data gathered by NASA’s Dawn mission to determine that the dwarf planet Ceres’ salty, icy crust could be the remains of an ancient global ocean – and there may still be some liquid water locked up deep beneath the surface.
Continue Reading
Astronomers have observed an occultation of a distant star to get a better look at the little-known dwarf planet Haumea, which orbits the Sun beyond Neptune. Scientists were able to pin down the planet’s size, shape and density, and make a surprising new discovery: Haumea has a rocky ring around it.
Continue Reading
New data from NASA's Dawn spacecraft suggests that Ceres' surface is too strong to be dominated by ice.
Continue Reading
NASA scientists have taken their first look at the interior of the dwarf planet Ceres, by tracking tiny alterations in the motion of the Dawn spacecraft as it continues to orbit the enigmatic planetoid.
Continue Reading
A new dwarf planet has been identified on the fringes of our solar system. Designated 2015 RR245, the object’s size isn’t known just yet, but its discoverers estimate it to have a diameter of 700 km (435 miles) and one of the largest orbits of a dwarf planet, circling the Sun once every 700 years.
Continue Reading
Using data collected by NASA's Dawn spacecraft, an international team of astronomers has created a Map of the dwarf planet Ceres' northern hemisphere detailing regions that exist in permanent shadow.
Continue Reading
Using data captured by NASA's New Horizons spacecraft, a team of researchers from Purdue University has estimated the depth of the vast nitrogen ice pool believed to exist beneath the Sputnik Planum region on the dwarf planet Pluto.
Continue Reading
NASA has released a fresh mosaic of Pluto's surface, stitched together from the highest resolution images captured by the spacecraft as it sped past the planetoid on July 14, 2015.
Continue Reading
According to a team of astronomers making use of data from two powerful orbital telescopes, a dwarf planet known as 2007 OR10 orbiting in the far reaches of our solar system is significantly larger than previously believed.
Continue Reading
See the stories that matter in your inbox every morning