Friday, December 9, 2022

🤖 Dark Matter

What is not a main source of evidence for the existence of dark matter?


A) massive blue stars

B) rotation curves of disk galaxies

C) stellar motions in elliptical galaxies

D) velocities and positions of galaxies in clusters of galaxies

E) gravitational lensing by clusters of galaxies

Thursday, August 25, 2022

🕮 handcuffs, manacle, manacles, bracelets, bracelet, ruffle, darbies, #handcuffs #manacle #manacles #bracelets #bracelet #ruffle #darbies

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