ESA Astronaut Alexander Gerst of Germany: "An orbital sunrise brings tears to my eyes. I wish every human could see this once with their own eyes." #BlueDot | International Space Station

An orbital sunrise brings tears to my eyes. I wish every human could see this once with their own eyes #BlueDot pic.twitter.com/XbRQtOL6Sc

— Alexander Gerst (@Astro_Alex) June 22, 2014

Why Mars? Inspiring a Nation to Greatness: Former NASA Astronaut Charles Precourt at TEDxBend

We Are Dead Stars: Every atom in our bodies was fused in an ancient star. NASA astronomer Dr. Michelle Thaller explains how the iron in our blood connects us to one of the most violent acts in the universe—a supernova explosion—and what the universe might look like when all the stars die out.

Billionaire Elon Musk on SpaceX, Mars, SolarCity and Tesla | CNBC

Hubble Space Telescope: Zoom into GOODS field containing distant dwarf galaxies forming stars at an incredible rate

Hubble Space Telescope: GOODS field containing distant dwarf

Bursts of star formation in the dwarf galaxies of the early Universe | Hubble Space Telescope

NASA’s MESSENGER Spots Giant Space Weather Effects at Mercury | My Science Academy

Storm Cell Over the Southern Appalachian Mountains | NASA

Who Was Hugh Dryden? by Amy Shira Teitel | NASA History

Gorgeous Amateur Time Lapse of Jupiter Re-enacts Voyager Flyby | io9

Super-Earth or mini-Neptune? Planetary researcher uses SOFIA to observe exoplanet transit | German Aerospace Center/DLR

NASA Astronaut Reid Wiseman: "I will never tire of this view." | International Space Station

I will never tire of this view. pic.twitter.com/le1yPjeTkC

— Reid Wiseman (@astro_reid) June 19, 2014

NASA Astronaut Reid Wiseman: "Look close – Sasha and @OlegMKS are hanging on the outside." | International Space Station

Look close – Sasha and @OlegMKS are hanging on the outside. pic.twitter.com/6ZDH8OYz0k

— Reid Wiseman (@astro_reid) June 19, 2014

Stunning Night Sky Images: Earth & Sky Photo Contest 2014 | The World at Night (TWAN)

Stunning Night Sky Images: Earth & Sky Photo Contest 2014 from Babak Tafreshi on Vimeo.

ESA Astronaut Alexander Gerst of Germany: Look at what a fragile, thin layer of air protects our #BlueDot

Look at what a fragile, thin layer of air protects our #BlueDot pic.twitter.com/CCeY9W7AI8

— Alexander Gerst (@Astro_Alex) June 16, 2014