An article from Science News Jan 2019
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An article from Science News Jan 2019
A cosmic flare called the ‘Cow’ may reveal a new way that stars die
An article from Science News Jan 2019
New Horizons shows Ultima Thule looks like a snowman, or maybe BB-8
Briefing
50th anniversary of Apollo 11 Moon landing Published in 2019
On July 20, 1969, the bulkily space-suited figure of astronaut Neil Armstrong descended the ladder of Apollo 11’s lunar lander, planted his boot in the Moon's gray dust, and declared: "That's one small step for a man, one giant leap for mankind."…
Biography
Abetti, Giorgio (1882–1982)
Biography
Adams, John Couch (1819–1892)
Biography
Adams, Robert McC(ormick) (1926– )
Biography
Adams, Walter Sydney (1876–1956)
Article
Adaptive optics
The science of optical systems in which a controllable optical element, usually a deformable mirror, is used to optimize the performance of the system, for example, to maintain a sharply focused image in the presence of wavefront aberrations. A…
Biography