A look ahead to Sunday’s comet fly-by of Mars

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On Sunday Comet Siding Spring will whiz past Mars at a distance of only 82,000 miles.

The article gives a good overview of where look to see the comet if you own a telescope, as well as what the many spacecraft at Mars are going to do to both view the fly-by as well as protect themselves from it.



  • PeterF

    In the trilogy, “Red Mars, Green Mars, Blue Mars” one of the methods used to bring water to Mars was to steer comets into an intercept, then blow them up into small pieces upon reentry. There were some other very interesting ideas in the series as well.

  • Max

    Life imitating fiction. I also read the series and enjoyed it very much. Real data mixed with good science and a touch of fantasy to make it almost plausible. (The terraforming of Mars with space elevators I mean.)
    In real life, Mars is not dense enough to hold a thick atmosphere. So I am hoping the author will tell the terraforming story for “White Venus” and ” Jeweled Saturn”.
    Venus is earths evil twin but has nearly the same gravity. With 90 earth atmospheres, it would probably terraform into a water planet. I’m thinking airogell constructed carbon fiber cities suspended from hydrogen balloons floating in the green zone miles above the hot surface. Since Venus’s day is longer then it’s Year, a space elevator probably wouldn’t work.
    Saturn on the other hand would be a fun challenge. With gravity only 10% more than Earths, humans could live there without much discomfort.

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