Sep 28 1961
From The Space Library
NASA announced that instrumented Venus probe to be launched next year would be launched by an Atlas-Agena B rather than a Centaur rocket as originally planned.
Solar flare studied by Explorer XII and Injun I, readings within a few hours indicated energetic protons with velocities of near 10,000 kilometers per second, while 2 days after the solar flare both satellites saw a sudden increase in the intensity of low-energy protons (c. 10 mev) concurrently with a magnetic storm on Earth and bright aurora at low altitude. It was concluded that low-energy protons traveled slowly from the Sun with the magnetic storm cloud.
X-15 (No. 2) flown to 100,800 feet and 3,600 miles per hour by Comdr. Forrest S. Petersen, U.S. Navy, at Edwards, Calif. September 28-29: Pair of spinup rockets on Tiros II successfully fired after more than 10 months in orbit.
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