Curiosity rover lands on Mars (Official thread) - Post all updates on here
- Thread starter awan4ever
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| Remnants of Ancient Streambed on Mars (Closeup) |
| NASA's Curiosity rover found evidence for an ancient, flowing stream on Mars at a few sites, including the rock outcrop pictured here, which the science team has named "Hottah" after Hottah Lake in Canada's Northwest Territories. It may look like a broken sidewalk, but this geological feature on Mars is actually exposed bedrock made up of smaller fragments cemented together, or what geologists call a sedimentary conglomerate. Scientists theorize that the bedrock was disrupted in the past, giving it the titled angle, most likely via impacts from meteorites. The key evidence for the ancient stream comes from the size and rounded shape of the gravel in and around the bedrock. Hottah has pieces of gravel embedded in it, called clasts, up to a couple inches (few centimeters) in size and located within a matrix of sand-sized material. Some of the clasts are round in shape, leading the science team to conclude they were transported by a vigorous flow of water. The grains are too large to have been moved by wind. Broken surfaces of the outcrop have rounded, gravel clasts, such as the one circled in white, which is about 1.2 inches (3 centimeters) across. Erosion of the outcrop results in gravel clasts that protrude from the outcrop and ultimately fall onto the ground, creating the gravel pile at left. This image mosaic was taken by Curiosity's 100-millimeter Mastcam telephoto lens on its 39th Martian day, or sol, of the mission (Sept. 14, 2012 PDT/Sept. 15 GMT). |
Humi
Prime Minister (20k+ posts)
You know some people think it was a lie and he never set a foot on the moon...lol..
such bolo
Chief Minister (5k+ posts)
جی بلکل کچھ لوگوں کے خیال میں یہ سب ڈرامہ تھا
بہرحال ڈرامہ هو بھی سکتا ہے
میں تو صرف اتنا جاننا چاہتا ہوں کہ آیا اپولو ١١ کے بعد کوئی انسانی مشن چاند پر گیا؟
اور نہیں گیا تو کیوں؟؟
such bolo
Chief Minister (5k+ posts)
جواب مل گیا
Apollo 11, 1969, Neil Armstrong, Buzz Aldrin, Michael Collins
Apollo 12, 1969, Charles (Pete) Conrad, , Alan Bean, Richard Francis Gordon
Apollo 14, 1971, Alan Shepard, Edgar Mitchell, Stuart Roosa
Apollo 15, 1971, David Scott, James Irwin, Alfred Worden
Apollo 16, 1972, John Young, Charles Duke, Thomas Mattingly
Apollo 17, 1972, Eugene Cernan, Harrison Schmitt, Ronald Evans
Apollo 13 did not land due to a mechanical problem that nearly killed the crew. The 3rd man listed in each mission did not walk on the Moon, but instead stayed in orbit around the Moon in the command module while the other two landed in the lunar module.
Since 1972 we have not ventured above low Earth orbit. Apollo 18, 19 and 20 were actually built but congress cut the program off before they could be launched and those three space vehicles are now on display now in Houston, Huntsville and Cape Canaveral. The reason for not going to the Moon again was the high cost and danger, combined with the public loosing interest in the program. The feeling was, been there, done that, so why keep spending billions to do it again and again. But we ARE spending billions to just go up into low Earth orbit again and again, and I would personally rather see us going to the Moon instead. And NASA would like it too, but they need money from congress to do it. There is a plan to go back, but since they cannot just stop work on the Shuttle and space station and other programs and they don't have enough money to keep doing those other things and start a new Moon program too, the plan is to use what money is available over a period of 15 or 20 years to go back. I suspect congress will kill the project before it gets completed though, due to the cost.
ts_rana
Minister (2k+ posts)
yaar ye mulak to Gustakhe rasool ka hai jisne ye mission baija hai. ye thread shuru kerke kaheen aap per kufar ka fatwa hi na lag jae. I really respect American due to their great countribution in research. Thats why Human is called Ashraful makhlookat. Anyway its really good stuff to start to motivate our people for Science and technology.
