Lagoon Cocoon By Geckzilla On Flickr.

Jupiter’s moon, Callisto.

The Infrared Visible Andromeda: This remarkable synthetic color composite image was assembled from archives of visible light and infrared astronomy image data. The field of view spans the Andromeda Galaxy are also included in the frame. via NASA

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If you were on the moon during a lunar eclipse and you looked back at the Earth, you would see it surrounded by the red ring of the sun behind it. You’d be looking at every sunset and every sunrise on Earth at the same time.

on the first day of class my astronomy professor asked us why the night sky was dark. if our universe is infinite, how can there be spaces between the stars? he didn’t answer the question until the last day– because our universe is relatively young, and is still growing. it is finite. not enough stars or galaxies have been formed to fill up the entire night sky.

but what that means to me is that somewhere, in an older universe, the night sky looks like a tapestry of diamonds. somewhere darkness is pale white and glittering. imagine being so surrounded. i haven’t gotten that image out of my head ever since– you could never navigate under such a sky but god it sounds lovely

Saturn and its moons

Image credit: NASA/JPL-Caltech

Nearby dust clouds in the Milky Way

Credit: NASA, ESA, and The Hubble Heritage Team (STScI/AURA)

Morning On Mars

 Martian sunrises, as seen by the HiRISE orbiter

Spectacular!

Credit: Fragile Oasis

Timelapse of Europa & Io orbiting Jupiter, shot from Cassini during its flyby of Jupiter

Tilt-shift photo of the space shuttle Endeavour by NASA

https://www.nasa.gov/mission_pages/shuttle/flyout/multimedia/endeavour/11-05-16-2.html