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
|
|
SES sees shift in revenue from video to government services
Posted: Sun, Aug 3 12:05 PM ET (1605 GMT) SpaceX launches Starlink satellites and classified payloads
Posted: Sun, Aug 3 12:03 PM ET (1603 GMT) |
|
news links
|
|
Sunday, August 3
GMV developments key for Galileo’s new authentication service
GMV — 12:53 pm ET (1653 GMT) Arianespace to launch EUMETSAT's Metop-SGA1 satellite on August 12, 2025, with Ariane 6
Arianespace — 12:52 pm ET (1652 GMT) PPI Calls on FCC to Update Satellite Rules for Faster, Cheaper Internet
Progressive Policy Institute — 12:50 pm ET (1650 GMT) Argo and ThinkOrbital to Partner on Long-Range X-Ray Imaging Mission for Space Domain Awareness
Argo Space — 12:46 pm ET (1646 GMT) SFL Missions Inc. Awarded Contract for Fast-Turnaround AISSat-4 Nanosatellite Development to Expand Capacity in Norwegian Maritime Monitoring System
SFL Mission — 12:45 pm ET (1645 GMT) |
