Clumps found in Saturn's rings
Posted: Wed, May 23, 2007, 1:49 PM ET (1749 GMT)
Scientists working with data from NASA's Cassini spacecraft have concluded that one of Saturn's major rings is composed of clumps of material rather than a more uniform distribution of smaller objects. Planetary scientists used a series of stellar occultations, where the rings passed in front of a star, to perform a "CAT scan" of the rings, analyzing the distribution of particles within them. They found that one ring, the B ring, contains tightly-packed clumps of material with wider spacings between the clumps than previously expected. The clumps are constantly forming and being town apart by Saturn's gravity, often colliding with one another. This clumpiness may mean that Saturn's rings have two to three times as massive as previously thought.
Scientists working with data from NASA's Cassini spacecraft have concluded that one of Saturn's major rings is composed of clumps of material rather than a more uniform distribution of smaller objects. Planetary scientists used a series of stellar occultations, where the rings passed in front of a star, to perform a "CAT scan" of the rings, analyzing the distribution of particles within them. They found that one ring, the B ring, contains tightly-packed clumps of material with wider spacings between the clumps than previously expected. The clumps are constantly forming and being town apart by Saturn's gravity, often colliding with one another. This clumpiness may mean that Saturn's rings have two to three times as massive as previously thought.
Related Links:
| <<previous article | next article>> |
|
news in brief
|
|
China launches first Long March 12A, but booster landing fails
Posted: Sun, Dec 28 9:50 AM ET (1450 GMT) |
|
news links
|
|
Monday, December 29
Iran Says It Launched 3 Satellites Into Space From Russia
AFP — 5:08 am ET (1008 GMT) Starlink withdraws satellite services from Papua New Guinea
Radio New Zealand — 5:07 am ET (1007 GMT) SpaceX Rocket Launch of Italian Satellite Scrubbed Again
Noozhawk — 5:04 am ET (1004 GMT) If we're going to vacation on the Moon, we need to make sure no-one is left behind
BBC — 5:03 am ET (1003 GMT) New Outer Hebrides spaceport won't launch rockets on a Sunday
The Sunday Post — 5:02 am ET (1002 GMT) |
