3. Iberian peninsula at night, taken by an astronaut onboard iss
4. Great Sandy National Park in Queensland, Australia
5. here’s a pic of tonight’s blue moon
6. Probing the Electric Space Around Earth
7. Hubble Ultra Deep Pic
8. Ithaca Chasma: The Great Rift on Saturn’s Tethys
9. Saturn and Titan Seen From Cassini
10. What Our View of the Milky Way Would Be 9000 Light-years Up
11. The moon from my front garden on Tuesday, warning extreme non-pro photography ahead!
12. Albireo: A Binary Star System
13. View of The Milky Way in Turkey
14. The first picture taken by a human on the surface of another world: Neil Armstrong took this looking out his window to the south; a thruster is in the foreground
15. Extravehicular Activity for Sunita Williams
16. Saturn’s Dragon Storm
17. Mount…. Dismount…
18. If you can’t beat it, shoot it.
19. Once in a blue moon
20. Quasar 3C-273
21. Saturn and Titan: Colorful colossuses and changing hues
22. Milky Way over Wallowa Mountains
23. Milky Way and Andromeda
24. Hurricanes.
25. Apollo 11 Landing Site Panorama
26. Milky Way, Gormach Afghanistan
27. Laser marks on Martian soil
28. The Cat’s Eye Nebula (NGC 6543) is one of the best known planetary nebulae in the sky. Its enormous but extremely faint halo of gaseous material is about 6 light-years across.
29. NGC 1929 in N44: A Surprisingly Bright Superbubble
30. Photo of NGC 6611 (the Pillars of Creation) taken using UWA’s SPIRIT 1 Observatory (x-post from /r/astrophysics)