It's DART spacecraft will launch in late December 2020 and intercept Didymos' moonlet
in early October 2022, when the Didymos system is within 11 million kilometres of Earth.
The researchers estimate the hypothesized moonlets
in Uranus' rings would be 2 to 9 miles (4 to 14 kilometers) in diameter -- as small as some identified moons of Saturn, but smaller than any of Uranus' known moons.
Made mostly of water ice, the more the particles gather together the more they tend to reflect sunlight - highlighting the moonlet
's location for Cassini.
"We are proud to add Moonlet
to our line of products," says Roland de Fries, Managing Partner.
One day, in a slow-motion collision, the moonlet
smacked into the moon's farside.
aturon GmbH currently holds the worldwide patent for Moonlet
, and is in production for the Moonlet
iPad2 version and various other tablet computers.
The new moonlet
in the B ring, situated about 300 miles, or 480 kilometers, inward from the outer edge of the B ring, was found because of a shadow 25 miles, or 41 kilometers, long that it throws on the rings.
about 100 meters wide would have created the gap.
Cassini imaging scientists analyzing images acquired over the course of about 600 days found the tiny moonlet
, half a kilometer (about a third of a mile) across, embedded within a partial ring, or ring arc, previously found by Cassini in Saturn's tenuous G ring.
"Both the moonlet
belt objects and the main rings of Uranus have been created by the breakup of larger objects," he says.
Phobos 2, on the other hand, has the mission's only "hopper," designed to be deposited on the moonlet
's surface, where it will jump from place to place on spring-loaded legs, making measurements at the different sites.
During its flybys of the planet, Cassini recently captured an image of the biggest one of these propellers, linked to an especially large "moonlet
" called Bleriot, named after the first aviator to fly over the English Channel more than 100 years ago.