Chicago in Winter

در 2015-02-25 21:22، NASA News Services نوشته است:

You are subscribed to Image of the Day for NASA. This information has recently been updated, and is now available. Chicago in Winter 02/25/2015 11:00 AM EST From the International Space Station (ISS), European Space Agency astronaut Samantha Cristoforetti took this photograph of Chicago and posted it to social media on Feb. 19, 2015. She wrote, "How do you like #Chicago dressed for winter?" Crewmembers on the space station photograph the Earth from their unique point of view located 200 miles above the surface as part of the Crew Earth Observations program. Photographs record how the planet is changing over time, from human-caused changes like urban growth and reservoir construction, to natural dynamic events such as hurricanes, floods and volcanic eruptions. Astronauts have used hand-held cameras to photograph the Earth for more than 40 years, beginning with the Mercury missions in the early 1960s. The ISS maintains an altitude between 220 - 286 miles (354 - 460 km) above the Earth, and an orbital inclination of 51.6˚, providing an excellent stage for observing most populated areas of the world. Image Credit: NASA/ESA/Samantha Cristoforetti This e-mail update was generated automatically based on your subscriptions. Some updates may belong to more than one category, resulting in duplicate notices. Questions? Contact Us STAY CONNECTED: SUBSCRIBER SERVICES: Manage Preferences  |    |  Help This message has been sent by NASA Headquarters · Washington, DC 20546

NASA TV to Air Interactive Women in STEM Event

در 2015-02-13 18:03، NASA News Services نوشته است:

You are subscribed to Space Station News for NASA. This information has recently been updated, and is now available. NASA TV to Air Interactive Women in STEM Event 02/10/2015 11:00 AM EST NASA experts, including crew members aboard the International Space Station, will answer questions about science, technology, engineering and mathematics (STEM) disciplines during a forum called "Women in STEM: STEM in the Global Science Community" from 12:30 to 1:30 p.m. EST on Tuesday, Feb. 17. This e-mail update was generated automatically based on your subscriptions. Some updates may belong to more than one category, resulting in duplicate notices. Questions? Contact Us STAY CONNECTED: SUBSCRIBER SERVICES: Manage Preferences  |  |  Help This message has been sent by NASA Headquarters · Washington, DC 20546

Growing Deltas in Atchafalaya Bay

در 2015-02-13 20:36، NASA News Services نوشته است:

You are subscribed to Image of the Day for NASA. This information has recently been updated, and is now available. Growing Deltas in Atchafalaya Bay 02/13/2015 11:00 AM EST The delta plain of the Mississippi River is disappearing. The lobe-shaped arc of coastal land from the Chandeleur Islands in eastern Louisiana to the Sabine River loses a football field’s worth of land every hour. Put another way, the delta has shrunk by nearly 5,000 square kilometers (2,000 square miles) over the past 80 years. That’s as if most of Delaware had sunk into the sea. Though land losses are widely distributed across the 300 kilometer (200 mile) wide coastal plain of Louisiana, Atchafalaya Bay stands as a notable exception. In a swampy area south of Morgan City, new land is forming at the mouths of the Wax Lake Outlet and the Atchafalaya River. Wax Lake Outlet is an artificial channel that diverts some of the river’s flow into the bay about 16 kilometers (10 miles) west of where the main river empties. Both deltas are being built by sediment carried by the Atchafalaya River. The Atchafalaya is a distributary of the Mississippi River, connecting to the “Big Muddy” in south central Louisiana near Simmesport. Studies of the geologic history of the meandering Mississippi have shown that—if left to nature—most of the river’s water would eventually flow down the Atchafalaya. But the Old River Control Structure, built in the 1960s by the U.S. Army Corps of Engineers, ensures that only 30 percent of the Mississippi flows into the Atchafalaya River, while the rest of the keeps moving toward Baton Rouge and New Orleans. More information. Image Credit: NASA/Earth Observatory This e-mail update was generated automatically based on your subscriptions. Some updates may belong to more than one category, resulting in duplicate notices. Questions? Contact Us STAY CONNECTED: SUBSCRIBER SERVICES: Manage Preferences  |  |  Help This message has been sent by NASA Headquarters · Washington, DC 20546

Lander Trench Dug by Opportunity | NASA

Lander Trench Dug by Opportunity | NASA

Curiosity Rover at 'Pahrump Hills' | NASA

Curiosity Rover at 'Pahrump Hills' | NASA

IRIS Launch Set for Thursday | NASA

IRIS Launch Set for Thursday | NASA

NASA TV Coverage Set for NOAA DSCOVR Launch Feb. 8

در 2015-02-02 21:19، NASA News Services نوشته است:

You are subscribed to Solar System News for NASA. This information has recently been updated, and is now available. NASA TV Coverage Set for NOAA DSCOVR Launch Feb. 8 01/30/2015 11:00 AM EST The Deep Space Climate Observatory (DSCOVR) is scheduled to launch at 6:10 p.m. EST Sunday, Feb. 8 from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida on a SpaceX Falcon 9 rocket. A backup launch opportunity is available at 6:07 p.m. on Feb. 9, if needed. This e-mail update was generated automatically based on your subscriptions. Some updates may belong to more than one category, resulting in duplicate notices. Questions? Contact Us STAY CONNECTED:   SUBSCRIBER SERVICES: Manage Preferences  |  Unsubscribe  |  Help This message has been sent by NASA Headquarters · Washington, DC 20546

 

The plan to Launch America on This Week @NASA

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Hubble's View of the Polar Ring of Arp 230

در 2015-01-30 21:12، NASA News Services نوشته است:

You are subscribed to Large Image of the Day for NASA. This information has recently been updated, and is now available. Hubble's View of the Polar Ring of Arp 230 01/30/2015 11:00 AM EST This image shows Arp 230, also known as IC 51, observed by the NASA/ESA Hubble Space Telescope. Arp 230 is a galaxy of an uncommon or peculiar shape, and is therefore part of the Atlas of Peculiar Galaxies produced by Halton Arp. Its irregular shape is thought to be the result of a violent collision with another galaxy sometime in the past. The collision could also be held responsible for the formation of the galaxy’s polar ring. The outer ring surrounding the galaxy consists of gas and stars and rotates over the poles of the galaxy. It is thought that the orbit of the smaller of the two galaxies that created Arp 230 was perpendicular to the disk of the second, larger galaxy when they collided. In the process of merging the smaller galaxy would have been ripped apart and may have formed the polar ring structure astronomers can observe today. Arp 230 is quite small for a lenticular galaxy, so the two original galaxies forming it must both have been smaller than the Milky Way.  A lenticular galaxy is a galaxy with a prominent central bulge and a disk, but no clear spiral arms.  They are classified as intermediate between an elliptical galaxy and a spiral galaxy. European Space Agency Image Credit: ESA/Hubble & NASA, Acknowledgement: Flickr user Det58 This e-mail update was generated automatically based on your subscriptions. Some updates may belong to more than one category, resulting in duplicate notices. Questions? Contact Us STAY CONNECTED:   SUBSCRIBER SERVICES: Manage Preferences  |  Unsubscribe  |  Help This message has been sent by NASA Headquarters · Washington, DC 20546