This article is distributed by NASA’s Night Sky Network (NSN). The NSN program supports astronomy clubs across the USA dedicated to astronomy outreach.
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by Theresa Summer
Bird constellations abound in the night sky, including Cygnus, the majestic swan.… Continue reading.
Astronomy and space news summarized by Don Lynn from NASA and other sources
Most Massive Black Hole Merger – The largest black holes ever observed to merge were detected by the LIGO and Virgo gravitational wave detectors. The black holes were 85 and 66 times the Sun’s mass and merged to form one of 142 solar masses.… Continue reading.
Astronomy and space news summarized by Don Lynn from NASA and other sources
Dense Exoplanet – Observations by astronomers at the Pennsylvania State University found an unusually dense exoplanet orbiting a star in the Hyades open star cluster. Known as K2-25b, it is slightly smaller than Neptune but about 1.5 times as massive.… Continue reading.
Astronomy and space news summarized by Don Lynn from NASA and other sources
General Relativity – While Newton’s formula for gravity yields elliptical shapes for orbits, Einstein’s theory of general relativity dictates that orbiting bodies follow an ellipse that moves. Each time around an orbit, the perihelion of the ellipse advances a little bit, rotating about the main mass.… Continue reading.