They provide a wonderful glimpse into what Mars was like in the earliest part of its history,.. It was a violent place. It was a place where meteorite impacts were happening frequently. It was a place where there volcanic explosions happening frequently. Hot stuff was raining from the skies. There was water. When rocks were deposited, water would flow through those rocks and change their chemistry. This is a glimpse into the ancient past of Mars.
Steve Squyres
Chris will remember vividly as we were struggling along the northwestern flank of that mountain how much loose, fine-grain stuff there was. Our wheels would dig in, we'd slip around and we'd dig in deep. Remember that potato-sized rock we got stuck in the wheel once? It was really treacherous driving because there was accumulated dust there. We were probably in the wind shadow on the lee side of the hills at that point.
wind deep remember shadow mountain rock dust driving side
What we have found once we've gotten up into the summit region.. The driving has gotten very, very good. The ground is hard here. There is not a lot of fine-grain stuff around. What there is piled up in drifts. This is because the summit region is exposed to the wind; it's very windy. In some parts of the summit region, we barely leave tracks.
good wind leave hard found driving
With respect to how long it's going to take us to get down the hill, we don't have a whole lot of experience driving this vehicle downhill -- we've been going uphill for more than a year now. We're going to have to take it carefully at first and learn as we go. I think the deciding factor is going to be how good the geology is. If we're finding geology that offers truly compelling targets (for study) as we found on the way up, then our pace is going to be a lot slower whereas if it's a lot of loose sand and that sort of thing we'll be able to move through it a lot more briskly and head to the good stuff off in the distance.
distance experience respect good study learn found head finding sand geology thing driving
That very rugged stuff. There is a guy on our team who actually calls this the geologic promised land. I don't know if it's going to turn out to be that good or not and I don't know if we'll ever get there, but it certainly looks interesting.
good interesting team land guy
Both rovers continue to be in superb health. It has been just a remarkable mission and I would say we literally feel on top of the world right now being on the summit of Husband Hill.
health world feel husband mission
We have taken a beautiful 360-degree panoramic image, which I truly believe will be one of the signature accomplishments of this mission
image beautiful accomplishments mission
What field geologists typically do - and Spirit is a robotic field geologist - is you climb to the top of the nearest hill and take a look around so you get the lay of the land and figure out where you want to go
spirit land
change history past mars wonderful ancient water flow place chemistry hot part
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