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NASA Picture of the Day: Messier 101
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Big, beautiful spiral galaxy M101 is one of the last entries in Charles Messier's famous catalog, but definitely not one of the least. About 170,000 light-years across, this galaxy is enormous, almost twice the size of our own Milky Way. M101 was also one of the original spiral nebulae observed by Lord Rosse's large 19th century telescope, the Leviathan of Parsontown. Assembled from 51 exposures recorded by the Hubble Space Telescope in the 20th and 21st centuries, with additional data from ground based telescopes, this mosaic spans about 40,000 light-years across the central region of M101 in one of the highest definition spiral galaxy portraits ever released from Hubble.
10 Time-Saving Computer Hacks You Didn’t Know You Needed – Part 2
Following on from the last instalment, Jamie Durham is back with more tech and IT tips, and here he shares the remaining five hacks that can help to speed up how we operate online.
Asteroid Flybys Over the next 7 Days
NameDateMin Dia. (m)Max Dia. (m)Rel. Velocity (mph)Miss Distance (miles)
422686 (2000 AC6)29th Nov13329728,33314,768,855
(2021 VO6)29th Nov16436833,2467,750,796
531914 (2013 BW76)30th Nov530118556,06817,171,355
(2019 BK)30th Nov16737539,24133,253,361
(2021 VK11)1st Dec13129525,37222,341,062
438955 (2010 LN14)2nd Dec16336424,56227,629,147
415713 (1998 XX2)4th Dec27862223,1047,169,775
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