Daily Reminder That We Have A Spacecraft Orbiting Saturn—over One Billion Miles (1.636x10^9 Km) Away—and

nature | Night Life | by Joshwallace | http://ift.tt/1IeKeUi

Engineers are preparing to test the parachute system for NASA’s Orion spacecraft at the U.S. Army Yuma Proving Ground in Yuma, Arizona. During the test, planned for Wednesday, Aug. 26, a C-17 aircraft will carry a representative Orion capsule to 35,000 feet in altitude and then drop it from its cargo bay. Engineers will test a scenario in which one of Orion’s two drogue parachutes, used to stabilize it in the air, does not deploy, and one of its three main parachutes, used to slow the capsule during the final stage of descent, also does not deploy. The risky test will provide data engineers will use as they gear up to qualify Orion’s parachutes for missions with astronauts. On Aug. 24, a C-17 was loaded with the test version of Orion, which has a similar mass and interfaces with the parachutes as the Orion being developed for deep space missions but is shorter on top to fit inside the aircraft.

Jupiter in infrared light, as seen by NASA’s InfraRed Telescope Facility (IRTF). The observations were obtained in support of NASA’s Juno mission by a team headed by Juno scientist Glenn Orton.

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Interstellar bow

International Space Station

The International Space Station is an important and special place that is built on international cooperation and partnership. The station is a convergence of science, technology and human innovation that benefits and advances our global community here on Earth.

While the space station is an important aspect of our low-Earth orbit exploration, it is also the key to our next giant leap to deep space and our Journey to Mars. For example, our recent VEGGIE experiment aboard the space station is a critical aspect of long-duration exploration missions farther into the solar system. Food grown in space will be a resource for crew members that can provide them will essential vitamins and nutrients that will help enable deep space pioneering.

Another important experiment underway is the Twins Study that involves twin astronauts Scott and Mark Kelly. These investigations will provide insight into the subtle effects and changes that may occur in spaceflight as compared to Earth by studying two individuals who have the same genetics, but are in different environments for one year. You can follow Scott Kelly as he spends a year in space.

The space station is the second brightest object in the sky (after the moon, of course), and you don’t even need a telescope to see it! We can even tell you exactly when and where to look up to Spot the Station in your area!

So, as you look to spot the station in the sky, remember that even though it may look small from Earth, the crew onboard (and at home) are making contributions to international partnerships and global research.

Sea Level Rise

For thousands of years, sea level has remained relatively stable. But now, Earth’s seas are rising. Since the beginning of the 20th century, they have risen about eight inches, and more than two inches in the last 20 years alone!

As water warms, it expands and takes up more space. That means that when oceans warm, the sea level rises. This summer, we’ve been researching exactly how global warming has impacted Greenland’s ice sheet. Our ICESat-2 mission will use a laser to measure the height of the planet’s surface. Over time, we will be able to provide a record of elevation change, and estimate how much water has melted into the ocean from land ice change.

So how much ice are we actually losing? Great question, but the answer might shock you. In Greenland alone, 303 gigatons of ice was lost in 2014!

Since we know that ice is melting, we’re working to gain a better understanding of how much and how fast. We’re using everything from planes, probes and boats, to satellites and lasers to determine the impact of global warming on the Earth’s ice.

Follow along for updates and information: http://climate.nasa.gov/

New video! Dark nebulae in a nutshell!

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Rolling, rolling, rolling.

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