“The European Space Agency demonstrates its commitment to the United Nations Sustainable Development Goals through the activities promoted by its ten directorates. Satellite data and space applications, as well as space technologies, play a major role in addressing issues ranging from health care and education through to climate change and human migration. ESA’s multifaceted technical expertise can provide policy makers, aid organisations and private companies with the necessary tools to support economic growth, social development and environmental protection.”
“Less than 2 minutes after the launch of a 58-foot-tall (17.7-meter) Black Brant IX sounding rocket, a payload separated and began its dive back through Earth’s atmosphere. When onboard sensors determined the payload had reached the appropriate height and Mach number (38 kilometers altitude, Mach 1.8), the payload deployed a parachute. Within four-tenths of a second, the 180-pound parachute billowed out from being a solid cylinder to being fully inflated. It was the fastest inflation in history of a parachute this size and created a peak load of almost 70,000 pounds of force.”
“NASA’s GPM Core Observatory satellite captured an image of Super Typhoon Yutu when it flew over the powerful storm just as the center was striking the central Northern Mariana Islands north of Guam. Early Thursday, October 25 local time, Super Typhoon Yutu crossed over the U.S. Commonwealth of the Northern Mariana Islands. It was the equivalent of a Category 5 hurricane. The National Weather Service in Guam said it was the strongest storm to hit any part of the U.S. this year.
The Global Precipitation Measurement mission or GPM core satellite, which is managed by both NASA and the Japan Aerospace Exploration Agency, JAXA analyzed Yutu on October 24 at 11:07 a.m. EDT (1507 UTC)/ 1:07 a.m. Guam Time, October 25. GPM estimated rain rates within Super Typhoon Yutu fusing data from two instruments aboard: the GPM Dual-frequency Precipitation Radar or DPR, which covered the inner part of the storm, and the GPM Microwave Imager or GMI that analyzed the outer swath, just as the center was passing over the Island of Tinian.”
“The New Shepard reusable launch system is a vertical-takeoff, vertical-landing (VTVL), suborbital crewed rocket that is being developed by Blue Origin as a commercial system for suborbital space tourism. Blue Origin is owned and led by Amazon.com founder and businessman Jeff Bezos and aerospace engineer Rob Meyerson.
The name New Shepard makes reference to the first American astronaut in space, Alan Shepard, one of the original NASA Mercury Seven astronauts, who ascended to space on a suborbital trajectory similar to that planned for New Shepard. Prototype engine and vehicle flights began in 2006, while full-scale engine development started in the early 2010s and was complete by 2015. Uncrewed flight testing of the complete New Shepard vehicle (propulsion module and space capsule) began in 2015. Flights with test passengers were planned for 2018, with commercial passenger flights initially planned to begin in 2018 as well.
On 23 November 2015, after reaching 100.5 km (62.4 mi) altitude (outer space), the New Shepard booster successfully performed a powered vertical soft landing, the first time a booster rocket had returned from space to make a successful vertical landing. The test program continued in 2016 and 2017 with four additional test flights made with the same vehicle (NS2) in 2016 and the first test flight of the new NS3 vehicle made in 2017.”
“As of October 2016, all methods of landing on Mars have required an aeroshell and parachute sequence for Mars atmospheric entry and descent, but after that there are three choices. A stationary lander can drop from the parachute back shell and ride retrorockets all the way down, but a rover cannot be burdened with rockets that serve no purpose after touchdown.
One method (for lighter rovers) is to enclose the rover in a tetrahedronal structure which in turn is enclosed in airbags. After the aeroshell drops off, the tetrahedron is lowered clear of the parachute back shell on a lanyard so that the airbags can inflate. Retrorockets on the back shell can slow descent. When it nears the ground, the tetrahedron is released to drop to the ground, using the airbags as shock absorbers. When it has come to rest, the tetrahedron opens to expose the rover.
If a rover is too heavy to use airbags, the retrorockets can be mounted on a sky crane. The sky crane drops from the parachute back shell and, as it nears the ground, the rover is lowered on a lanyard. When the rover touches ground, it cuts the lanyard so that the sky crane (with its rockets still firing) will crash well away from the rover.
For landers that are even heavier than the Curiosity rover (which required a 4.5 meter (15 feet) diameter aeroshell), engineers are developing a combination rigid-inflatable Low-Density Supersonic Decelerator that could be 8 meters (28 feet) in diameter. It would have to be accompanied by a proportionately larger parachute.”
“This visualization uses a digital 3D model of the Moon built from global elevation maps and image mosaics by NASA’s Lunar Reconnaissance Orbiter mission. It was created to accompany a performance of Claude Debussy’s Clair de Lune by the National Symphony Orchestra Pops, led by conductor Emil de Cou, at the Kennedy Center for the Performing Arts in Washington, DC, on June 1 and 2, 2018, as part of a celebration of NASA’s 60th anniversary.
The visuals were composed like a nature documentary, with clean cuts and a mostly stationary virtual camera. The viewer follows the Sun throughout a lunar day, seeing sunrises and then sunsets over prominent features on the Moon. The sprawling ray system surrounding Copernicus crater, for example, is revealed beneath receding shadows at sunrise and later slips back into darkness as night encroaches.”
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