There is a great place were astrophotografers keep their best photos. Have a look at AstroBin were amazing photos are stored and shared. Browse through the pictures or go directly to the Image of the day. A somewhat related service is Astrometry where you can submit your picture to find out what part of the sky it shows.
Another place taking a lot of pictures of the sky is the Sloan Digital Sky Survey. SDSS is mapping the sky and their pictures are used by Google and Microsoft among others. Go to the SkyServer or the gallery.
AstroBin | Picture of the day
Sloan Digital Sky Survey | SkyServer
NSSDCA Photo Gallery (not necessarily taken from Earth but a great gallery)
Wikipedia: Sloan Digital Sky Survey | WikiSky | WorldWide Telescope | Galaxy Zoo
This day 76 years ago Nazi Germany and the Soviet Union signed the Molotov-Ribbentrop Pact. A second World War later millions of people were killed. After the war the Soviet Union continued the systematic killing.
August 23 is now the Black Ribbon Day or European Day of Remembrance for Victims of Stalinism and Nazism.
We know more about how many were murdered by the Nazi’s but not exactly how many are (still being) murdered by communists. The Black Book of Communism tries to answer that. If you dare you can read it here.
Chris Anderson (TED) on Elon Musk: The World’s Most Remarkable Entrepreneur
The site “Wait But Why” is writing a four-part series on Elon Musk and his companies. Don’t miss it!
Part One: Elon Musk: The World’s Raddest Man
Part Two: How Tesla Will Change The World
Part Three: How (And Why) SpaceX Will Colonize Mars
Part Four: The Cook and the Chef: Musk’s secret dauce
Don’t miss the sources at the end of each part.
SpaceX | Tesla Motors | SolarCity | Reddit AMA: Elon Musk
Wikipedia: Elon Musk | SpaceX | Tesla Motors | SolarCity | Hyperloop | PayPal
The Space Shuttles were retired in 2011 after 135 missions during 30 years of operation. The below map shows you where the remaining space shuttles are located now. The shuttle Enterprise was made for test flights and had no orbital capability. Today it’s located at the Entrepid Sea, Air & Space Museum in New York. One of the jumbo jets (NASA 905) that was used to ferry the shuttles will be displayed at the Space Center Houston together with mockup shuttle Independence (Space.com).
Discovery OV-103: Steven F. Udvar-Hazy Center
Atlantis OV-104: Kennedy Space Center
Endeavour OV-105: California Science Center
Prototypes & mockups:
Enterprise: Entrepid Sea, Air & Space Museum
Independence: Space Center Houston
Pathfinder: U.S. Space & Rocket Center
NASA: The Space Shuttle | Space Shuttle Retirement | Retired Space Shuttle Locations
Wikipedia: Space Shuttle Retirement | Space Shuttle program | Columbia | Challanger | Discovery | Atlantis | Endeavour
Enterprise | Independence / Explorer | Pathfinder | Inspiration | America
Today we have spent what our Earth’s ecosystem can provide us over a year. This planet have limited resources and even if it can renew some of it we’re now depleting our home planet.
Global Footprint Network: Earth Overshoot Day
WWF: Overshoot Day
The Guardian: Humans have already used up 2015’s supply of Earth’s resources
Wikipedia: Ecological Debt Day