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In 2015, Stephan Geier of the European Southern Observatory led a team that reported in Science that the velocity of the star was 1,200 km/s (4,300,000 km/h; 2,700,000 mph), the highest ever recorded in the galaxy. [3] [7] [8] The star's high velocity was originally suspected to be caused by the massive black hole at the center of the galaxy.
He wrote a book on the subject, [2] was guest editor for the space plasma special editions at the IEEE journal Transactions on Plasma Science devoted primarily to plasma cosmology, [3] and wrote some papers on the subject. [4] [5] He has also published work connecting the ouroboros motif to intense auroral events.
John R. Gribbin (born 19 March 1946) [1] is a British science writer, an astrophysicist, and a visiting fellow in astronomy at the University of Sussex. [2] His writings include quantum physics, human evolution, climate change, global warming, the origins of the universe, and biographies of famous scientists.
Within each orbit of the Parker Solar Probe around the Sun, the portion within 0.25 AU is the Science Phase, in which the probe is actively and autonomously making observations. Communication with the probe is largely cut off in that phase. [57]: 4 Science phases run for a few days both before and after each perihelion. They lasted 11.6 days ...
A tachyon (/ ˈ t æ k i ɒ n /) or tachyonic particle is a hypothetical particle that always travels faster than light. Physicists believe that faster-than-light particles cannot exist because they are inconsistent with the known laws of physics.
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The Scientific American Library is a book series of popular science written by scientists known for their popular writings and originally published by Scientific American books from 1983 to 1997. These books were not sold in retail stores, but as a Book of the Month Club selection priced from $24.95 to $32.95.
Glenday sees the annual book — initially conceived to settle bar arguments — as a fundamentally optimistic collection, one that celebrates ambition and record-breaking as very human things.