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Annual. Earth Day is an annual event on April 22 to demonstrate support for environmental protection. First held on April 22, 1970, it now includes a wide range of events coordinated globally by EARTHDAY.ORG (formerly Earth Day Network) [1] including 1 billion people in more than 193 countries. [2] [1] [3] The official theme for 2024 is "Planet ...
Open Clip Art Library logo This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication . The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the ...
Pale Blue Dot is a photograph of Earth taken on February 14, 1990, by the Voyager 1 space probe from an unprecedented distance of approximately 6 billion kilometers ( 3.7 billion miles, 40.5 AU ), as part of that day's Family Portrait series of images of the Solar System . In the photograph, Earth's apparent size is less than a pixel; the ...
The orbit of the Moon is a nearly circular ellipse about the Earth (the semimajor and semiminor axes are 384,400 km and 383,800 km, respectively: a difference of only 0.16%). The equation of the ellipse yields an eccentricity of 0.0549 and perigee and apogee distances of 362,600 km (225,300 mi) and 405,400 km (251,900 mi) respectively (a ...
Celebrate Planet Earth, formerly known as Earth's Birthday Project, is a U.S.-based 501(c)(3) environmental educational non-profit organization. History [ edit ] Since Earth's Birthday Project's founding in 1989, it is estimated that more than 15 million school children have participated in butterfly and sunflower activities, as well as ...
In Germanic-speaking cultures, the time around the summer solstice is called ' midsummer '. Traditionally in northern Europe midsummer was reckoned as the night of 23–24 June, with summer beginning on May Day. [5] The summer solstice continues to be seen as the middle of summer in many European cultures, but in some cultures or calendars it ...
J. R. R. Tolkien's artwork. Tolkien's illustration of the Doors of Durin for The Fellowship of the Ring, with Sindarin inscription in Tengwar script, both being his inventions. Despite his best efforts, this was the only drawing, other than maps and calligraphy, in the first edition of The Lord of the Rings. [1]
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