34 results for

miasabine t1_ivpc3dp wrote

about 6 million years, the modern form of humans only evolved about 200,000 years ago.” “Modern humans originated in Africa within the past 200,000 years”


TomThePancake t1_iyepzae wrote

They can, according to this article. [](


I_Heart_Astronomy t1_jaisc5e wrote

natural background brightness by 10% in dark areas that are normally free of artificial light pollution: Just wait until all this over-commercialization of space results in 100x the number of satellites


Nerull t1_jdy8gyp wrote

glare at all. Here's a planet 25ly away from the Hubble Space Telescope:


Brickleberried t1_is1wsck wrote

galaxies rotate? It's simply conservation of angular momentum. To steal from [this article]( > Structures rotate because of a property known as angular momentum. Angular momentum is a measure of mass