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Posts tagged milky way
Legacy Survey Sky Browser
Today in “Space is Really BIG”
I like to think of this as the whole sky always being “there”, but the Earth blocks about half of it ALL THE TIME! Alternately,…
I like to think of this as the whole sky always being “there”, but the Earth blocks about half of it ALL THE TIME! Alternately, if we look straight “up”, we’re always pointed towards a different part of same sky.
Dust is everywhere because its source is everything. Its most remote origins in time and space are the Big Bang, collapsing…
“Dust is everywhere because its source is everything. Its most remote origins in time and space are the Big Bang, collapsing stars, and the dark line across the center of the Milky Way, which, according to astronomer Donald Brownlee,“is a line of dirt perhaps 65,200 light years across, and 3.832 X 1017 miles long.” Here on earth, dust comes from everything under the sun: minerals, seeds, pollen, insects, molds, lichens, and even bacteria. Its sources also include bone, hair, hide, feather, skin, blood, and excrement. And things of human fabrication, too numerous to mention, also cover the earth and all the atmosphere with dust.”
–Joseph A. Amato. Dust.