s*****t
发帖数: 1994 | 1 A Dust Devil on Mars
Credit: Malin Space Science Systems, MGS, JPL, NASA
Explanation: Does the surface of Mars change? When inspecting yearly images of the
Martian surface taken by the robot spacecraft Mars Global Surveyor currently orbiting Mars,
sometimes new dark trails are visible. Although originally a mystery, the culprit is now
usually known to be a dust devil, a huge swirling gas-cloud with similarities to a terrestrial
tornado. Pictured above, a recent image has not only cap |
|
