Kehkeşan

Each spring and summer, as the air warms up and the sunlight...

Mon, 25 Mar 2013 06:19:32 -0400

Each spring and summer, as the air warms up and the sunlight beats down on the Greenland ice sheet, sapphire-colored ponds spring up like swimming pools. As snow and ice melt atop the glaciers, the water flows in channels and streams and collects in depressions on the surface that are sometimes visible from space. (via NASA - Greenland Melt Ponds)

(via Image of the Day)

Wed, 13 Mar 2013 06:59:55 -0400

(via Image of the Day)

(via Bushveld Igneous Complex : Image of the Day) With uses...

Wed, 27 Feb 2013 05:34:56 -0500

(via Bushveld Igneous Complex : Image of the Day)

With uses ranging from jewelry to catalytic converters, platinum ranks among the most prized and most expensive metals. About 70 percent of the world’s platinum is mined in the Bushveld Igneous Complex in South Africa—a geological formation roughly the same size as West Virginia. The Bushveld also supplies significant quantities of palladium, rhodium, chromium, and vanadium.

Tristan da Cunha (via Tristan da Cunha, South Atlantic...

Wed, 27 Feb 2013 05:33:32 -0500

Tristan da Cunha (via Tristan da Cunha, South Atlantic Ocean : Image of the Day)

The Green of Central Maine : Image of the Day

Sat, 16 Feb 2013 13:15:03 -0500

The Green of Central Maine : Image of the Day

(via A Satellite’s View of Ship Pollution : Image of the...

Sat, 16 Feb 2013 13:12:03 -0500

(via A Satellite’s View of Ship Pollution : Image of the Day)

(via Von Karman Vortices off Chile : Image of the Day)

Thu, 07 Feb 2013 08:14:08 -0500

(via Von Karman Vortices off Chile : Image of the Day)

(via Our Reach Should Exceed Our Grasp : Image of the Day)

Thu, 07 Feb 2013 08:02:01 -0500

(via Our Reach Should Exceed Our Grasp : Image of the Day)

(via Sand and Tourism in Gran Canaria : Image of the Day)

Thu, 24 Jan 2013 04:33:36 -0500

(via Sand and Tourism in Gran Canaria : Image of the Day)

(via Polar Mesospheric Clouds, South Pacific Ocean : Image...

Thu, 24 Jan 2013 04:32:48 -0500

(via Polar Mesospheric Clouds, South Pacific Ocean : Image of the Day)

(via NASA - Portrait of Global Aerosols)

Wed, 28 Nov 2012 06:32:04 -0500

(via NASA - Portrait of Global Aerosols)

(via NASA - SpaceX Launches to the International Space Station)

Mon, 15 Oct 2012 14:33:31 -0400

(via NASA - SpaceX Launches to the International Space Station)

(via NASA - Angling Saturn)

Mon, 01 Oct 2012 11:13:45 -0400

(via NASA - Angling Saturn)

This image shows the robotic arm of NASA’s Mars rover...

Thu, 27 Sep 2012 18:08:14 -0400

This image shows the robotic arm of NASA’s Mars rover Curiosity with the first rock touched by an instrument on the arm. (via NASA - Curiosity’s Rock-Contact Science Begins)

Yes, the James Webb Space Telescope Mirrors ‘Can’...

Wed, 26 Sep 2012 11:25:25 -0400

Yes, the James Webb Space Telescope Mirrors ‘Can’ (by NASA Webb Telescope)

Flight Mirror Segment Inspection (by NASA Webb Telescope)

Wed, 26 Sep 2012 11:20:39 -0400

Flight Mirror Segment Inspection (by NASA Webb Telescope)

(via NASA - President’s Signature On Board...

Fri, 21 Sep 2012 14:43:13 -0400

(via NASA - President’s Signature On Board Curiosity)

İyiymiş la, adamın imzası var. Taa nerde.

NASA’s Cleanroom Receives the Webb Mirrors (by NASA Webb...

Fri, 21 Sep 2012 14:37:08 -0400

NASA’s Cleanroom Receives the Webb Mirrors (by NASA Webb Telescope)

“The first two mirrors that will fly aboard NASA’s James Webb Space Telescope arrived at NASA’s Goddard Space Flight Center in Greenbelt, Md. and were wheeled into NASA’s giant clean room in this photo.

Each of the two mirrors are in their own shipping canister. The canisters will be opened, and the mirrors will be removed and checked. The mirrors await assembly onto the telescope structure.

The mirrors were manufactured, packed and shipped by Ball Aerospace & Technologies Corp. of Boulder, Colo.

The powerful primary mirrors of the James Webb Space Telescope will be able to detect the light from distant galaxies. The Webb telescope has 21 mirrors, with 18 primary mirror segments working together as one large 21.3-foot (6.5-meter) primary mirror. The mirror segments are made of beryllium, which was selected for its stiffness, light weight and stability at cryogenic temperatures. Bare beryllium is not very reflective of near-infrared light, so each mirror is coated with about 0.12 ounce of gold.

The Webb telescope is the world’s next-generation space observatory and successor to the Hubble Space Telescope. The most powerful space telescope ever built, the Webb telescope will provide images of the first galaxies ever formed, and explore planets around distant stars. It is a joint project of NASA, the European Space Agency and the Canadian Space Agency.”

For more information about the James Webb Space Telescope, visit:

www.jwst.nasa.gov

Credit: NASA/Chris Gunn

Mars Panorama

Thu, 20 Sep 2012 13:07:00 -0400

Mars Panorama - Curiosity rover: Martian solar day 2 in New Mexico

(via Istanbul at Night : Image of the Day)

Wed, 19 Sep 2012 03:17:30 -0400

(via Istanbul at Night : Image of the Day)