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Mars NASA Space

Mars Curiosity Rover Shoots Video of Phobos Moon Rising 67

An anonymous reader writes "This movie clip shows Phobos, the larger of the two moons of Mars, passing overhead, as observed by NASA's Mars rover Curiosity in a series of images centered straight overhead starting shortly after sunset. Phobos first appears near the lower center of the view and moves toward the top of the view. The clip runs at accelerated speed; the amount of time covered in it is about 27 minutes"
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Mars Curiosity Rover Shoots Video of Phobos Moon Rising

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  • It seems that this rising happened during the 'day'. Sometimes our moon does that but just before I watched this video I expected it to be 'night'.
    Anyway, nice one!
    Probably Mars wont experience a lot of tidal forces from such a tiny rock ;-)
    • The moon rises within the day on Earth too.

  • a series of images centered straight overhead starting shortly after sunset

    It's not rising, it's already overhead.

  • Obligatory Star Wars reference.

  • by Nutria ( 679911 ) on Monday July 08, 2013 @07:41AM (#44214689)

    lower center of the move? The Sun? (This was supposed to be just after sunset.)

    • Question: does our sky go dark like flipping a switch the instant the sun is "below" the horizon, or does the atmosphere scatter enough light to light the sky for an hour after sunset?

      Now that you arrive at the answer to that question, answer this one: does Mars have an appreciable atmosphere capable of raleigh scattering, or is it so tenuous (like our Moon's) that it is little more than a few particles and gas so thin that there is no measurable pressure - and barely qualifies as gas, but more of random pa

      • by Nutria ( 679911 )

        Atmospheric scattering was actually the first thing I thought of.

        According to Wikipedia and a calculator, Martian air pressure is 1/159,489th that of Earth's (I already knew that it was a tiny fraction), so that's why I questioned how much scattering could happen.

  • KSP (Score:3, Funny)

    by Optimal Cynic ( 2886377 ) on Monday July 08, 2013 @08:40AM (#44214905)
    And if you want to reenact that for yourself, get a copy of Kerbal Space Program and get launching.
    • I would, but I'm being too anal about getting my ship put together in orbit. Jebediah's getting bloody impatient in the hitch-hiker module.

  • I had to manually scrape the html to find a link to the actual video.

    They claim to support IE, Chrome, Firefox, and Opera, but somehow I think what they really mean is that they only support Mac and Windows.

  • that ain't no moon...

Think of it! With VLSI we can pack 100 ENIACs in 1 sq. cm.!