a waste of time.
NASA photographs have revealed bright new deposits seen in two gullies on Mars that suggest water carried sediment through them sometime during the past seven years. "These observations give the strongest evidence to date that water still flows occasionally on the surface of Mars," said Michael Meyer, lead scientist for NASA's Mars Exploration Program, Washington.
The article goes on to describe two images, taken in 1999 and 2005, which show the same crater with a new, post-1999 gully which appears to have been formed by water flow. Looks like future (and maybe present?) Martians have one less problem.Observations from the Mars Global Surveyor (MGS) have revealed "recent activity" on the surface of the red planet; recent meaning in the past seven years. These changes include cratering from impacts (which is cool enough, and I'll blog about those later), but also, yes, the flow of water.
Read the full transcript."The news about water is that we have found two gullies out of the 10,000 that we have observed that have fresh deposits that we believe were formed by water flowing out recently
... Within the last five years.