It's a catch-22: the lenses of ground-based telescopes can be made huge, but are hamstrung by distortion from the atmosphere. Hubble-type telescopes don't have that issue, but must be small to be launched into space, and good luck fixing them. That's where NASA's SOFIA (Stratospheric Observatory for Infrared Astronomy) comes in: by sticking a 17-ton telescope into a Boeing 747, you can launch it up to 45,000 feet and get past 99 percent of our atmosphere's water vapor.
via Tech News Headlines - Yahoo News http://ift.tt/1j6gZ0z
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