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Earl Carl Slipher of Lowell Observatory (Flagstaff, Ariz.) has spent more time looking at Mars than any other living astronomer. Some years ago he made photographs showing that there are clouds and storms in the atmosphere of Mars, mostly in the neighborhood of the Martian equator. These are thickest in the early Martian morning, quickly vanish as the sun climbs...

Author: /time Magazine | Title: Science: Beyond Earth | 7/31/1939 | See Source »

...light from the sun which reaches Earth and is reflected back to the moon. By spectroscopic analysis of this "earthshine" and by inferring additional details from the known phenomena of optics, astronomers can form a plausible idea of how Earth looks from other planets. Last week Director Vesto Melvin Slipher of Lowell Observatory (Flagstaff, Ariz.) told how Earth must look to Mars. The Martian astronomer sees a planet bluer than Venus and bigger. If he looks sharp he can see the polar caps shrinking and spreading with the change of seasons. Through rifts in the cloud veil, he discerns great...

Author: /time Magazine | Title: Science: Philosophers in Philadelphia | 4/29/1935 | See Source »

...shells of tremendously hot gas at 1,000,000 m.p.h. By last week it had jumped 13 magnitudes to the first, acquired a name, Nova Herculis 1934. Its radiation had increased 200,000 times; it was among the twelve brightest stars in the sky. Directors Vesto Melvin Slipher of Lowell Ob servatory (Flagstaff, Ariz.) and Harlow Shapley of Harvard Observatory obtained remarkable spectra, said the star might be the most important stellar outburst ever witnessed...

Author: /time Magazine | Title: Science: Nova Herculis; Swaseya | 12/31/1934 | See Source »

...varies with the hours of the day and the seasons of the year, as if Earth periodically gets between the radio receiver and an extra-terrestrial source of the hiss. In this variation the Jansky waves differ from Dr. Millikan's cosmic rays and Dr. Vesto Melvin Slipher's cosmic radiation (TIME. May 1). Directional studies show that the hiss must originate near the point in the Milky Way toward which the Sun is rushing Earth and the other planets. Researcher Jansky left it to the astrophysicists to say what caused his new galactic waves...

Author: /time Magazine | Title: Science: Galactic Hiss | 5/15/1933 | See Source »

...Slipher let the strange, faint light sift through spectroscopes. After 100-hr. exposures he caught blue and violet bands in his spectrographs. Other exposures showed red light in "surprising strength." More recent observations demonstrate that zodiacal light contains the entire spectrum from red to violet. The assumption is that "the strange light originates at some distance above the Earth's surface, in a layer of considerable thickness. The Earth's atmosphere is playing a considerable role in the production of these radiations." The light seems to be a transformation of sunlight (or starlight) rather than a reflection...

Author: /time Magazine | Title: Science: Vigorous Atmosphere | 5/1/1933 | See Source »

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