Monday, February 17, 2020

Science & U.S. Presidents

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                                                Photograph, by Mathew Brady, of John Quincy Adams, the 6th President of the United States, ...
11 comments:
Saturday, February 1, 2020

Astro-Calendar: 2020 Feb. / Once-in-Century Palindrome: Feb. 2

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In addition to being Groundhog Day (above, photo of 2005 annual Groundhog Day ceremony on Gobler's Knob in Punxsutawney, Pennsylvania)...
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Monday, January 27, 2020

New Solar Sail Better Uses Laser Energy for Spacecraft Propulsion

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Artist's depiction of the proposed Japanese IKAROS space-probe using a solar sail powered by a powerful ground-based laser. (Image Sou...
7 comments:
Thursday, January 23, 2020

Public Invited to Vote to Name NASA's Mars 2020 Rover--By This Monday, Jan. 27

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NASA's Mars 2020 Rover needs an official name. (Image Sources: NASA, Wikipedia.org, By NASA/JPL-Caltech - https://photojournal.jpl.na...
9 comments:
Thursday, January 2, 2020

Astro-Calendar: Jan. / SpaceX Crew Dragon Test Launch Jan. 11

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SpaceX Crew Dragon spacecraft, which is scheduled to undergo a critical In-Flight Abort test flight on January 11. This uncrewed test flig...
15 comments:
Friday, December 20, 2019

Winter Begins Late Sat. Night; Ursid Meteor Shower Sun. Night

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   This diagram shows the position of the Earth, in relation to the Sun, at the time of the Winter Solstice, as well as the other solstice...
11 comments:
Saturday, December 7, 2019

Laser Space Probe Finds the Unexpected

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Artist's rendering of the LISA Pathfinder space probe approaching solar orbit. (Image Source: European Space Agency / C. Carreau) B...
10 comments: