Tag Archives: space science

Vikings 1 and 2 and the Failure to Detect Life on Mars


The first truly successful landings on Mars took place in 1976 when the Viking mission used two identical spacecraft, each consisting of a lander and an orbiter. Launched on August 20, 1975, from the Kennedy Space Center in Florida, Viking … Continue reading

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Announcement of Public Lecture: 40th Anniversary of Viking Landings on Mars


Join us for a series of presentations at 7:30 p.m. Tuesday, July 19, Virginia Air & Space Center, Hampton, Virginia, to commemorate the 40th anniversary of the Viking landings on Mars. Open to the public Admission is free. In this special Sigma Series … Continue reading

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The Earth as Art


This is so cool! You may view in this stunning video the Earth through the eyes of the Landsat-7 satellite. At a sublime level these images are art, showing the beauty of the Earth from space. If we got nothing … Continue reading

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Setting Course for the Red Planet: Early Flyby Missions to Mars


Robotic exploration of Mars has been one of the persistent efforts of the space age. It began, just as lunar exploration had, in a race between the United States and the Soviet ­Unionto see who would be the first to … Continue reading

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Three Zones of the Solar System


With the success of the New Horizon’s spacecraft visiting Pluto and the Kuiper Belt, it seemed appropriate to discuss hte major zones of the solar system. The solar system consists of the Sun and the objects bound to it through … Continue reading

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Announcing the Space Policy and History Forum #18


The next Space Policy and History Forum takes place on December 1, 2015, and will feature Michael Meyer, the Mars Exploration Program Scientist at NASA Headquarters, presenting “Astrobiology in Action.” Please note that this forum will be held at the Applied Physics Laboratory, not … Continue reading

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Wednesday’s Book Review: “The Interstellar Age”


The Interstellar Age: Inside the Forty-Year Voyager Mission. By Jim Bell. New York: Dutton Books, Published by the Penguin Group, 2015. xi + 321. Notes and further reading, acknowledgments, index. ISBN: 978-0-525-95432-3. Hardcover with dustjacket. $27.95 USD. Part memoir, part … Continue reading

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Protesting Cassini’s Launch


The Cassini space probe—the largest interplanetary probe ever launched, weighing 6.3 tons, and extending 22 feet in length—was a joint NASA, European Space Agency (ESA), and Italian Space Agency (ASI) mission to study Saturn and its rings, moons, and magnetic … Continue reading

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Perceptions of Belief in a Flat Earth


It’s a wonderful thing, the imagination of humankind. It has brought us the wonders of science and technology, the ideals of freedom and democracy, the inspiration to question, and the desire to help others, to name only a few positive … Continue reading

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A Balance Sheet on All of the Landings on Mars


Since the beginning of the space age there have been 17 landings on the surface of Mars, some of which were not successful. Initially the Soviet Union carried out two attempted landings in 1971, Mars 2 and 3, but the … Continue reading

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