08 Feb '15, 3pm

Antarctica's Tallest Volcano #NASA

Along a 900-kilometer (560-mile) stretch of Antarctica's Pacific Coast, 18 major volcanoes jut from the ice sheet. The chain, similar in size to the Cascade volcanic chain in North America, is home to the continent’s tallest volcano—Mount Sidley. (Not to be confused with Vinson Massif , Antarctica's tallest mountain.) These images of Mount Sidley were acquired on November 20, 2014, by the Operational Land Imager (OLI) on Landsat 8 . The volcano stands about 4,200 meters (13,800 feet) above sea level and 2,200 meters (7,200 feet) above ice level. The caldera wall, which is mostly shadowed in this image, is about 1,200 meters (3,900 feet) high. The caldera floor spans 5 kilometers (3 miles). According to the USGS Geographic Names Information System , Rear Admiral Richard E. Byrd discovered the volcano during a flight on November 18, 1934. He later named the mountain after Ma...

Full article: http://earthobservatory.nasa.gov/IOTD/view.php?id=85238&s...

Tweets

Singapore buzz. Feel Like Getting High? Asia's ...

skytower.com.sg 07 Feb '15, 11pm

Catch panoramic views across Singapore, Sentosa and the Southern Islands from Asia's tallest free standing observation tow...

A Chip off the King Baudouin Ice Shelf #NASA

A Chip off the King Baudouin Ice Shelf #NASA

earthobservatory.nasa.gov 07 Feb '15, 3pm

While large icebergs calve regularly from fast-flowing ice shelves in West Antarctica, the coast of cooler, drier East Ant...

Sun-Earth Selfie #NASA

Sun-Earth Selfie #NASA

earthobservatory.nasa.gov 10 Feb '15, 3pm

In late January 2015, a NASA spacecraft caught an unusual view of Earth. The Solar-Terrestrial Relations Observatory A (ST...

New Land on the Louisiana Coast #NASA

earthobservatory.nasa.gov 12 Feb '15, 3pm

View Image Comparison View Both Images While most of the delta plain of the Mississippi River Delta is losing ground, new ...

Memphis, Tennessee #NASA

Memphis, Tennessee #NASA

earthobservatory.nasa.gov 09 Feb '15, 3pm

Astronauts aboard the International Space Station took this photograph of Memphis, also known as “Bluff City” because of i...