Science: To See the Sun

The sun in a clear sky could hardly be more visible, its light and heat beating down apparently unhindered. But scientists know that the earth's atmosphere stops most of the radiation in the sun's long spectrum, which runs all the way from gamma rays to radio waves. Now at last U.S. scientists are getting a steady, unhampered look at the sun's radiation.

The precious data come from a 440-lb. satellite observatory launched last week from Cape Canaveral into an orbit averaging 355 miles high. The satellite, called OSO (for Orbiting Solar Observatory), is a gadget-lovers' dream, the most complex object launched into...

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