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Astronomy Day: First Quarter Moon: 2024 Spring May 18 May 15 Autumn October 12 October 10 2025: Spring: May 3: May 4 Autumn September 27 September 29 Past events.
The exact length has been variously defined as either that of a solar day or of a sidereal day. [ 1 ] [ 2 ] [ 3 ] Astronomical days were historically used by astronomers (in contrast most commonly to solar days), but since the Industrial Revolution this usage has generally fallen out of favor, in order to avoid confusion with more conventional ...
11 must-see astronomy events in 2025. ... Woman's Day. 21 best 1990s baby names that are still relevant today. News. News. Associated Press. 11 injured as small plane crashes into building roof in ...
Astronomy is a natural science that studies celestial objects and the phenomena that occur in the cosmos. It uses mathematics, physics, and chemistry in order to ...
In addition to the upcoming events in outer space, Saturday, May 7, marks International Astronomy Day. The bi-annual holiday was founded to raise awareness about the night sky and takes place ...
Stop Food Waste Day. April 29. International Astronomy Day. International Dance Day. National Shrimp Scampi Day. National Zipper Day. World Veterinary Day. April 30. International Jazz Day.
StarDate: M81 Fact Sheet; M81, SEDS Messier pages; SST: Messier 81; NASA Astronomy Picture of the Day: Bright Galaxy M81 (20 June 2002) NightSkyInfo.com – M81, Bode's Galaxy; Messier 81 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images; ESA/Hubble images of M81; Galaxy Messier 81 (Bode's Galaxy)
President Barack Obama looks through a telescope during the first White House Astronomy Night (October 7, 2009) White House Astronomy Night (and alternatively Astronomy Night on the National Mall) is an event first organized by the White House in conjunction with the Office of Science and Technology Policy to motivate interest in astronomy and science education.