“All 786 known planets (as of June 2012) to scale (some planet sizes estimated based on mass). This [small box] is our solar system. The rest of these orbit other stars and were only discovered recently. Most of them are huge because those are the kind we learned to detect first, but now we’re finding that small ones are actually more common. We know nothing about what’s on any of them. With better telescopes, that would change. This is an exciting time.”
70% of the oxygen in the earth’s atmosphere comes from the algae that tint the surface of the ocean.
Scorching temperatures—sometimes topping 120 degrees Fahrenheit (49 degrees Celsius)—crack the earth in Ethiopia’s Danakil Desert.
The Expedition 27 crew photographed this sunset over western South America from aboard the International Space Station. The station crew sees, on average, sixteen sunrises and sunsets during a 24-hour orbital period.
Nile River Delta at Night - The lights show the distribution of people. In this view of Egypt, the population is shown to be almost completely concentrated along the Nile Valley, just a small percentage of the country’s land area.
The great dividing range, Australia
(submitted by snap-krackle-pop)
planet/star size comparison
(submitted by heyymeggi)
(fun fact: we are really, really, really, really, really, really, really small.)