The Goddard Space Flight Center has a Flickr account showcasing a series of images of our own home planet. Called “Blue Marble,” these spectacular images are the most detailed true-color image of the entire Earth to date. Using a collection of satellite-based observations, scientists and visualizers stitched together months of observations in 2001 of the land surface, oceans, sea ice, and clouds into a seamless, true-color mosaic of every square kilometer (.386 square mile) of our planet. Your tax dollars at work, these images are freely available to educators, scientists, museums, and the public. This record includes preview images and links to full resolution versions up to 21,600 pixels across.
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Above, we bring you what astrophysicist Daniel Holz calls “one of the coolest movies in all of science.” What you see here is not exactly straightforward. But it’s the work of UCLA astronomer Andrea Ghez, and it essentially shows stars orbiting around a supermassive black hole at the center of our galaxy over the past 15 earth years.
More: Black holes and white slopes
via Open Culture
Tags: black holes, space
The Space Elevator will reduce the cost of getting from earth to space. It will also allow us to take very large payloads into space very easily, very safely. Because of that, we can build cities on the moon. We can build space stations. We can build large solar arrays in space to collect energy from the sun and beam it down to earth.
How would space elevator affect the average person?
Through for example much faster telecommunication rates — you can have any kind of data rates you want, and videophones will be as common as a cell phone. And the solar power energy we’ll collect can relieve our dependence on oil. That in itself will change a lot of things it will reduce pollution and it will change world politics, hopefully even stopping some of the conflicts.
Link: k21st.wordpress.com
Further information: en.wikipedia.org/wiki/Space_elevator [1] spaceelevatorblog.com [2]

A space elevator is a proposed structure designed to transport material from a celestial body’s surface into space. Many variants have been proposed, all of which involve traveling along a fixed structure instead of using rocket powered space launch. The concept most often refers to a structure that reaches from the surface of the Earth on or near the Equator to geostationary orbit (GSO) and a counter-mass beyond.
Tags: nanotechnology, nanotube, space, space colonisation, Space Elevator
Tags: carl sagan, colonisation, exploration, humanity, space, transhumanism, vision


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