Mars gullies show signs of recent flowing water
Posted: Wed, Mar 4, 2009, 7:46 AM ET (1246 GMT)
A gully system on Mars appears to have been created by flowing water relatively recently in the planet's history, scientists reported this week. The system, found in a crater in the planet's mid-southern latitudes by a camera on NASA's Mars Reconnaissance Orbiter, appears to have been created as recently as 1.25 million years, very recently on geological timescales. Planetary scientists believe the gullies were created by snow and ice deposits that melted, creating brief periods of liquid, flowing water on the surface. Gullies have been spotted in crater walls in the past, but have been linked in some cases to processes that don't require flowing water.
A gully system on Mars appears to have been created by flowing water relatively recently in the planet's history, scientists reported this week. The system, found in a crater in the planet's mid-southern latitudes by a camera on NASA's Mars Reconnaissance Orbiter, appears to have been created as recently as 1.25 million years, very recently on geological timescales. Planetary scientists believe the gullies were created by snow and ice deposits that melted, creating brief periods of liquid, flowing water on the surface. Gullies have been spotted in crater walls in the past, but have been linked in some cases to processes that don't require flowing water.
Related Links:
| <<previous article | next article>> |
|
news in brief
|
|
|
|
news links
|
|
Friday, March 14
Britt, Tuberville talk Space Command and legislative updates for Alabama
Alabama Daily News — 4:24 am ET (0824 GMT) Calls Swell For The U.S. To Invest In Space Superiority
Aviation Week — 4:23 am ET (0823 GMT) Autonomy Has Outpaced International Space Law
War on the Rocks — 4:20 am ET (0820 GMT) Sonic boom expected from SpaceX's second launch this week from Vandenberg SFB
KSBY-TV San Luis Obispo, CA — 4:20 am ET (0820 GMT) X announces Bracket Challenge promising trip to Mars with SpaceX as grand prize
Awful Announcing — 4:19 am ET (0819 GMT) |
