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Reviving the Shriveled Lake Urmia

Once the second-largest saltwater lake in the Middle East, Lake Urmia attracted birds and bathers to bask in its turquoise waters in northwest Iran. Then beginning in the 1970s, nearly three decades of drought and high water demands on the lake shriveled the basin, shrinking it by 80 percent. Recent torrential rains have replenished the water levels of this aquatic gem once known as “the turquoise solitaire of Azerbaijan.”

The animation above shows Lake Urmia on April 9, 2018, and April 12, 2019. The images were acquired by the Moderate Resolution Imaging Spectroradiometer (MODIS) on our Terra satellite. Officials report that the lake’s surface area reached roughly 3,000 square kilometers (1,200 square miles) in April 2019—expanding its volume nearly two-fold from a year ago.

Read more about Lake Urmia here.

Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com.

In 2013, researchers published a shape model of asteroid Bennu based on years of observations from Puerto Rico’s Arecibo Observatory. Their model depicted a rough diamond shape. Five years later, the OSIRIS-REx spacecraft has reached the asteroid, and data obtained from spacecraft’s cameras corroborate those ground-based telescopic observations of Bennu. 

The original model closely predicted the asteroid’s actual shape, with Bennu’s diameter, rotation rate, inclination and overall shape presented almost exactly as projected! This video shows the new shape model created using data from OSIRIS-REx’s approach to the asteroid.

One outlier from the predicted shape model is the size of the large boulder near Bennu’s south pole. The ground-based shape model calculated it to be at least 33 feet (10 meters) in height. Preliminary calculations show that the boulder is closer to 164 feet (50 meters) in height, with a width of approximately 180 feet (55 meters).

Also during the approach phase, OSIRIS-REx revealed water locked inside the clays that make up Bennu. The presence of hydrated minerals across the asteroid confirms that Bennu, a remnant from early in the formation of the solar system, is an excellent specimen for the OSIRIS-REx mission to study. Get all the details about this discovery HERE.

Learn more about OSIRIS-REx’s journey at nasa.gov/osirisrex. 

Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com

DAY 3243

Emirates Palace, AbuDhabi        Feb  13/14,  2017         Mon/Tue  3:37 am

Birthday - EF - Saikarun Balivada      Tue, February 14 .. and our love and greetings to you on your special day .. have a good day and days ahead !

The wedding in the morning and the family sets out in suitable attire .. the cousins dance as is traditional .. and the brother dances with the sister , the cousin bride ..

And later at night formal get together to bring in the end of proceedings .. and back tomorrow .. wedding over .. all the pomp and grandeur over .. its back to work ..

more later .. love

Amitabh Bachchan

The Future of Gaming

Is Almost Here

Don’t miss an all-new South Park “Not Funny” tomorrow night at 10p/9c!

UP Wallet, an important project of DACC ecosystem. UP Wallet to DACC is like BitTorrent to Tron. UP Wallet is accessible on Google Play Store and iOS stores 🎁 It is readily available on the official website upwallet.io, simply scan the QR code to download. UP Wallet token Symbol : UWTC Total Supply : 10,000,000,000 UWTC Type : smartcontract ERC20 Decimals : 6 SmartContract : 0x282CB0a611280fF5887Ca122911A0cA6b841CB03 TokenTracker : https://etherscan.io/token/0x282cb0a611280ff5887ca122911a0ca6b841cb03 Exchanges : ✅ABCC (Recommend) UWTC/USDT - UWTC/BTC ✅Cashierest UWTC/KRW

In advance of the International Bicycle Day tomorrow, this week’s seven images have a bicycle theme. Visit www.pickit.com for more

Here is the flight path trajectory (in yellow), that I took in order to rescue myself using the virtual reality view of the ISS and software generated SAFER (gaseous nitrogen “jet” pack) to “fly” myself back to structure. Orbital mechanics can be extremely difficult to predict if you do not try to fly back on the same trajectory that you “fell” off on.

Check out Jordan Lindsey, an EVA instructor

Also Evelyn Miralles, Principal Engineer & Lead VR Innovator