Tag: NASA

Jan 21, 2013

15 Surreal Satellite Images of Earth

15 Surreal Satellite Images of Earth

Across four decades since 1972, Landsat satellites have continuously acquired space-based images of the Earth’s land surface, coastal shallows, and coral reefs. The Landsat Program, a joint effort of the U.S. Geological Survey (USGS) and the National Aeronautics and Space Administration (NASA), was established to routinely gather land imagery from space. The result of…

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Dec 23, 2012

Picture of the Day: A Complex Planetary Nebula

Picture of the Day: A Complex Planetary Nebula

A COMPLEX PLANETARY NEBULA Photograph by NASA/ESA/Hubble Heritage Team According to Wikipedia, a planetary nebula is an emission nebula consisting of an expanding glowing shell of ionized gas ejected during the asymptotic giant branch phase of certain types of stars late in their life. The term for this class of objects is…

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Dec 15, 2012

Picture of the Day: Greetings Earthlings

Picture of the Day: Greetings Earthlings

GREETINGS EARTHLINGS Photograph by NASA/Steve Robinson STS-114 astronaut Soichi Noguchi waves from the Shuttle payload bay, backdropped by the Earth below. During the mission’s second spacewalk, Noguchi and Discovery crewmate Steve Robinson replaced a failed gyroscope which keeps the International Space Station in the proper position in orbit. STS-114 was the first…

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Dec 6, 2012

The Black Marble: Earth at Night

The Black Marble: Earth at Night

On December 5th, 2010 scientists unveiled an unprecedented new look at our planet at night. A global composite image, constructed using cloud-free night images from a new NASA and National Oceanic and Atmospheric Administration (NOAA) satellite, shows the glow of natural and human-built phenomena across the planet in greater detail than ever before. Many…

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Nov 28, 2012

Picture of the Day: A Silhouette on Earth’s Horizon

Picture of the Day: A Silhouette on Earth’s Horizon

A SILHOUETTE ON EARTH’S HORIZON Photograph by NASA/Crew of Expedition 22 Though astronauts and cosmonauts often encounter striking scenes of Earth’s limb, this unique image, part of a series over Earth’s colourful horizon, has the added feature of a silhouette of the space shuttle Endeavour (now retired and on display at the…

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Nov 13, 2012

Picture of the Day: Our Sun Erupts

Picture of the Day: Our Sun Erupts

OUR SUN ERUPTS Photograph by NASA/GSFC/SDO On August 31, 2012 a long filament of solar material that had been hovering in the sun’s atmosphere, the corona, erupted out into space at 4:36 p.m. EDT. The coronal mass ejection, or CME, traveled at over 900 miles per second. The CME did not travel…

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Nov 3, 2012

Picture of the Day: The Water Planet

Picture of the Day: The Water Planet

THE WATER PLANET Photograph by NASA/Robert Simmon/Marit Jentoff-Nilsen Viewed from space, the most striking feature of our planet is the water. In both liquid and frozen form, it covers 75% of the Earth’s surface. It fills the sky with clouds and is practically everywhere on Earth; from inside the rocky crust to…

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