Sentences with phrase «by planetary rings»

Not exact matches

In a breakthrough study, an international team of scientists, including Professor Nikolai Brilliantov from the University of Leicester, has solved an age - old scientific riddle by discovering that planetary rings, such as those orbiting Saturn, have a universally similar particle distribution.

Through theoretical modeling, Aurélien Crida of the University of Nice Sophia - Antipolis and Sébastien Charnoz of the University of Paris Diderot found that the moon - formation action begins at the edge of a planetary ring, where a satellite can take shape without being shredded by the gravitational pull of the planet.

By drilling into a circular ridge inside the 180 - kilometer - wide crater rim, researchers also hope to nail down the processes that form «peak rings»: hallmarks of the largest impact craters, which planetary scientists have seen elsewhere in the solar system but which erosion has erased from other big craters on Earth.

The Little Ghost (right) is a more classic planetary nebula: Its doughnut is the steadily expanding ring of star gas that has been ionized and set aglow by ultraviolet light from the central white dwarf.

The mass and orbit of planetary candidate «b» is similar to 79 Ceti b, depicted at left with rings and two moons, as imagined by Bacon (more from NASA and Astronomy Picture of the Day).

© John Whatmough — larger image (Artwork from Extrasolar Visions, used with permission) Planetary candidate «b» depicted with rings and an icy moon, as imagined by Whatmough.

© Walter Myers — larger image (Artwork from Computergraphic Vistas, used with permission) View of a ringed, planetary candidate «b» from a rocky moon, as imagined by Myers (more).

Composite picture of the Cat's Eye Nebula (NGC 6543), combining three images taken by the Hubble Space Telescope.This planetary nebula has an unusually complicated structure, with concentric shells (seen as bright rings), jets (the projections at upper left and lower right), and a number of details that suggest complex interactions of shock waves.

Over at The Planetary Society, Emily Lakdawalla highlighted an image taken by the Cassini spacecraft of Saturn separate from its rings.

© John Whatmough — larger image (Artwork from Extrasolar Visions, used with permission) Planetary candidate «b» with moons and dust ring around old and swollen Aldebaran A, as imagined by Whatmough.

Torque is divvied up by a compound planetary gearset; when slip is detected, an electronically controlled clutch increases or reduces the friction between the two ring gears to change the front - to - rear distribution.

The planetary gearset is what's responsible for changing gear ratios, and it consists of a sun gear surrounded by smaller planet gears carried by a planet carrier enclosed in a ring gear.

Next time they should incorporate a cvd diamond heat spreader to iron out the kinks - By the time they get to orbit, all performance enhancing materials are cheap, and anything goes for planetary probes - a major engagement ring died to give Pioneer Venus a peep at the surface.