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Click on image to see more. Note how close the orbit of Mars is to the asteroid belt. Besides heat generated by molten rock, Mars has had much heat produced when asteroids impacted its surface making giant craters. The area around a large impact may take hundreds of thousands of years to cool. [4] 243 Ida and its moon Dactyl. Dactyl is the ...
The composition of Mars covers the branch of the geology of Mars that describes the make-up of the planet Mars. " Hottah " rock outcrop on Mars – ancient streambed [ 1 ] [ 2 ] [ 3 ] viewed by the Curiosity Rover (September 12, 2012, white balanced ) ( raw , close-up , 3-D version ).
Some elements like potassium, uranium, and thorium are naturally radioactive and give off gamma rays as they decay. Electromagnetic radiation from these isotopes can be detected by a Gamma-Ray Spectrometer (GRS) dropped toward the planetary surface or observed from orbit. An orbiting instrument can map the surface distribution of many elements ...
A few days after landing, Perseverance released the first audio recorded on the surface of Mars, capturing the sound of Martian wind. [82] [83] During its travels on Mars, NASA scientists had observed around Sol 341 (February 4, 2022) that a small rock had dropped into one of its wheels while the rover was studying the Máaz rock formation.
Uranium has been hot this year, industry experts say. The trouble is there may not be enough to go around. The squeeze on the metal, found in rocks and seawater, intensified recently after 22 ...
Today, Mars is believed to be largely tectonically inactive. However, observational evidence and its interpretation suggests that this was not the case further back in Mars's geological history. At the scale of the whole planet, two large scale physiographic features are apparent on the surface. The first is that the northern hemisphere of the ...
It's easy to lose track of nuclear news out of Oak Ridge. Here's why the Sept. 4 announcement was so different.
In today's puzzle, there are eight theme words to find (including the spangram). Hint: The first one can be found in the top-half of the board. Here are the first two letters for each word: