Word: menzel
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...solar explosion, equal in violence to 100 million hydrogen bombs exploding simultaneously, was recorded on film by University observers, Donald H. Menzel, Director of the Harvard College Observatory, told the American Astronomical Society Saturday...
...fragment, about 20,000 miles in diameter, shot out 200,000 miles before becoming too faint to see. The force necessary to produce this sudden acceleration was more than 1,000 times the pull of the earth's gravity, Menzel said...
...billion tons of gas, mainly hydrogen, was expelled. The radiated ultraviolet light energy disrupted radio transmission for a time by affecting the ionosphere, which usually bounces the radio waves back to the earth. The cause of the flares is not fully known, Menzel said. They could be caused by shock waves from tremendous upsurges of gas in the sun's atmosphere or because of electrical and magnetic forces near an active sunspot group...
...Menzel, the other speaker at the Forum, doubted whether life can exist on other planets because of extreme climatic conditions...
Donald H. Menzel, director of the College Observatory, and Fred L. Whipple, professor of Astronomy, agreed yesterday that prospects for interplanetary travel are based on "fact rather than fiction," but they saw many obstacles in the way of journeys into space...