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6 votes

How obvious would an Earth-like planet be when searching for signs of life in space?

The predicate of "roughly where Proxima Centauri b is" is a bit problematic. Anything orbiting a star with activity so violent as Proxima is automatically disqualified - the range of ...
SF.'s user avatar
  • 55k
5 votes

Why not land near the poles of Mars for extracting water?

The problem with the Martian Polar areas is that Mars has an axial tilt slightly greater than Earth's and a much longer year. This means that any probe going to a polar area would suffer a very severe ...
Slarty's user avatar
  • 9,142
3 votes

How obvious would an Earth-like planet be when searching for signs of life in space?

The vast majority of earth-sized planets orbiting sun-like stars at earth-like distances would be impossible to detect with current technology even if the host star was relatively close to us. The ...
antlersoft's user avatar
  • 1,213
2 votes

Why is there a pregnancy test kit on the ISS?

A pregnancy test is essential in working up abdominal pain in a woman of child bearing age. An ectopic pregnancy (implantation in the Fallopian tube or elsewhere) is potentially fatal without ...
Woody's user avatar
  • 21.4k
2 votes

Can plants grow in microgravity?

Since this question was originally asked, there have been quite a few experiments performed on the ISS studying plant growth: VEGGIE Facility (VEG-03,VEG-04,VEG-05) Dual locker payload facility ...
Doresoom's user avatar
  • 1,202

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