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Following in the wheelmarks of Sojourner (NASA’s first Mars rover, which landed on Mars in 1997), Spirit...
Astronomy.com
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Looking for a sky event this week? Check out our full Sky This Week column. July 6: Catch the...
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Warren Keller/Mike Selby, taken from Observatorio El Sauce, Chile NGC 7098 is a barred spiral galaxy around...
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Rocket launches this week On Tuesday, July 7, at 3:10 a.m. EDT, SpaceX is targeting the launch...
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NASA successfully launched its mission to save the Neil Gehrels Swift Observatory on July 3, just over...
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How can it be that the Moon’s mass is a little over 1 percent of Earth’s mass,...
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The total lunar eclipse of July 6, 1982, was the longest lunar eclipse of the 20th century,...
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Looking for a sky event this week? Check out our full Sky This Week column. July 5: Capture a...
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Isaac Newton‘s monumental book, Philosophiae Naturalis Principia Mathematica, was published July 5, 1687. Newton had developed the...
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Looking for a sky event this week? Check out our full Sky This Week column. July 4: A conjunction...
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On July 4, 1054, a supernova explosion occurred, marking the death of a star thought to be...
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Looking for a sky event this week? Check out our full Sky This Week column. July 3: Glimpse the...
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Space Race pioneer Andriyan Grigoryevich Nikolayev died July 3, 2004, in Cheboksary, Russia. Even among the first...
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Looking for a sky event this week? Check out our full Sky This Week column. July 2: The King’s...
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Friday, July 3Although the Moon is still bright, there’s a short window after darkness falls and before...
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A supplement to Astronomy magazine presented by Celestron Contents Telescopes 101 What kind of telescope is right...
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On July 2, 1967, the U.S.’s Vela 3 and 4 satellites, originally launched to monitor compliance with...
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Looking for a sky event this week? Check out our full Sky This Week column. July 1: Venus in...
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Ron Brecher from Guelph, Ontario, Canada Sharpless 2–112 is a glowing cloud of ionized hydrogen roughly 30...
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On July 1, 2004, the Cassini-Huygens mission, a collaborative undertaking by NASA, the European Space Agency (ESA),...