Fordama wrote:“You have indicated that Mars was totally different thousands of years ago, is it possible that there was a civilization on Mars thousands of years ago?”
Why do you find that so ridiculous? Scientific American seems to take it seriously. They published an article "Was There Ever Life on Mars? It was written by Jesse Emspak on October 4 2016.
Sounds to me like he thinks it is possible. He states that any life would have needed to deal with harsh radiation, and would therefore have needed to retreat underground two to three meters down.During the Mars Society annual meeting on Sept. 22-25, held in Washington, D.C., Jennifer Eigenbrode, a biogeochemist and geologist at NASA Goddard Space Flight Center in Maryland, outlined the constraints on whether living things could have existed on the Red Planet and what obstacles they would have faced, as well as whether it's possible that any life could still be there.
...Besides protection from radiation, life also needs liquid water. Eigenbrode pointed to some encouraging signs that the vital molecule is present on Mars, such as formations in Gale crater. Researchers have identified mudstones and sedimentary bands, which form only if there is water present for a long time, on the order of millennia.
..."The [Mars Science Laboratory on the Curiosity rover] was never prepared for looking for signs of life," she said. Curiosity data showed that some large carbon-based molecules remain in the soil of Mars, and they aren't just the results of contamination from the rover itself. https://www.scientificamerican.com/arti ... e-on-mars/
Maybe Rohrabacher's question was not so far fetched after all.
Things under Obama got a lot worse before they started to get better – and they only started to get better after the GOP took over half of Congress and put the brakes on spending.