Cassini sees dynamic nature of Enceladus
Posted: Thu, Sep 1, 2005, 1:47 PM ET (1747 GMT)
Images and other data obtained by NASA's Cassini spacecraft show that the icy Saturnian moon of Enceladus is far more active that planetary scientists originally thought. Cracks on the surface of Enceladus, dubbed "tiger stripes" because of their appearance, are no more than 1,000 years old and could be as young as 10 years old, scientists reported this week. The cracks were not seen by Voyager 2 when it flew past the moon in 1981. Scientists believe that icy material may spew out from the cracks, which may explain periods of brightening of the south polar region of the moon noticed by observers on Earth. How the small moon has managed to retain the interior heat required to drive such activity remains a mystery.
Images and other data obtained by NASA's Cassini spacecraft show that the icy Saturnian moon of Enceladus is far more active that planetary scientists originally thought. Cracks on the surface of Enceladus, dubbed "tiger stripes" because of their appearance, are no more than 1,000 years old and could be as young as 10 years old, scientists reported this week. The cracks were not seen by Voyager 2 when it flew past the moon in 1981. Scientists believe that icy material may spew out from the cracks, which may explain periods of brightening of the south polar region of the moon noticed by observers on Earth. How the small moon has managed to retain the interior heat required to drive such activity remains a mystery.
Related Links:
| <<previous article | next article>> |
|
news in brief
|
|
Starship explodes during preparations for static-fire test
Posted: Sun, Jun 22 6:52 AM ET (1052 GMT) |
|
news links
|
|
Friday, July 11
Space Force developing new cloud-based digital environment for training
Defensescoop — 8:08 am ET (1208 GMT) The battle over Colorado’s Space Command isn’t over, but it may be ending soon
Washington Examiner — 8:08 am ET (1208 GMT) Rocket Lab Selects Bollinger Shipyards to Support Modification of Neutron Landing Platform
Business Wire — 8:07 am ET (1207 GMT) Elon Musk's SpaceX set to launch Israel's Dror satellite
Globes Online — 8:04 am ET (1204 GMT) South Korea secures key step toward space partnership with Europe
Chosun Ilbo — 8:03 am ET (1203 GMT) |
