Set as Homepage - Add to Favorites

日韩欧美成人一区二区三区免费-日韩欧美成人免费中文字幕-日韩欧美成人免费观看-日韩欧美成人免-日韩欧美不卡一区-日韩欧美爱情中文字幕在线

【oiled sex videos】NASA preps new spacecraft heat shield for Mars landings

To gently land a rocket ship on oiled sex videosthe surface of Mars one must overcome the most ornery physics.

When a spacecraft returns to Earth, the relatively thick atmosphere helps slow down that speeding bullet. But on Mars, the aerodynamics are not so friendly. The atmosphere is much thinner, with the densest Martian air only about as thick as what you'll find on Earth at 100,000 feet above sea level, more than three times the altitude of Mount Everest's peak.

Of over 40 missions sent to Mars, fewer than half have been successful, according to NASA.


You May Also Like

And they want to send people there?

"I call it the anti-Goldilocks atmosphere," said Jim Reuter, NASA associate administrator for the space technology mission directorate. "It's thick enough that it causes you problems and not thin enough to help you."

SEE ALSO: Mars' sky gets a mysterious green aurora resembling a giant worm

But space scientists think they've figured out how to pull more drag out of literal thin air.

Engineers have developed new hardware — an inflatable heat shield — that might be the key. Called a Hypersonic Inflatable Aerodynamic Decelerator, or HIAD, the technology could help NASA land astronauts and massive cargo loads on the Red Planet in the late 2030s.

Now a team at the space agency's Langley Research Center in Virginia is ready to test its mettle in space. Earlier this week, scientists and engineers gathered to see the heat shield inflated for the final time on Earth before it shoots into orbit on a United Launch Alliance Atlas V rocket in November.

The mission, known as the Bernard Kutter Low-Earth Orbit Flight Test of an Inflatable Decelerator — LOFTID for short — will take the experiment up with a weather satellite on a trip around Earth that passes over the North and South poles. The heat shield will stay put until after the satellite's delivery, then will inflate as the spacecraft returns to Earth.

Mashable Light Speed Want more out-of-this world tech, space and science stories? Sign up for Mashable's weekly Light Speed newsletter. By clicking Sign Me Up, you confirm you are 16+ and agree to our Terms of Use and Privacy Policy. Thanks for signing up!

At a small demo on Wednesday, the gunmetal-gray-shrouded heat shield, looking like a giant mushroom cap, ballooned out in a cavernous laboratory. The contraption was 20-feet-wide, about the size of a small carousel, with a catwalk stretched overtop for scientists and engineers to cross it.

NASA demonstrating heat shield inflationNASA Langley researchers demonstrate the inflation of a heat shield for the final time on Earth before it undergoes a test in space this November. Credit: Elisha Sauers

Since NASA began in 1958, the agency has relied on rocket engines and rigid aeroshell heat shields to land spacecraft. The aeroshell is a protective cover, shielding the lander from the scorching heat of reentry.

From the first crewless Viking mission in the 1970s to NASA's most recent Curiosity rover launched in 2011, engineers have used the same heat shield technology to get to Mars.

But the classic technology is limiting. A hard aeroshell can only be as big as the diameter of a rocket's nose cone, which holds the lander. The larger the aeroshell, though, the heavier the loads can be. For sending astronauts to Mars, scientists say they'll need to land about 20 to 45 tons. So far, they've only landed less than two tons on the Martian ground.

Reliance on the old method has also constrained spacecraft landings to Mars' northern lowlands, below the base elevation level on the Red Planet, said Joe Del Corso, the project manager at Langley.

Mars Viking landerNASA has used the same classic heat shield technology to land on Mars since the Viking mission in the 1970s. Credit: NASA "I call it the anti-Goldilocks atmosphere."

That's how an inflatable heat shield could come in handy.


Related Stories
  • Why landing a spaceship on the moon is still so challenging
  • NASA's monstrous moon rocket is an overpriced, political beast
  • 6 things to know about NASA's moon-bound megarocket
  • A NASA prototype could save the lives of firefighters as blazes erupt in western U.S.
  • If the Webb telescope sunshield doesn't open, here’s what NASA will do

The system is composed of a stack of inner-tube-like rings strapped together. Its synthetic material is 15 times stronger than steel and able to withstand temperatures over 2,900 degrees Fahrenheit. The idea is to deploy it higher up in Mars' atmosphere, expanding NASA's touchdown options throughout the Martian southern highlands.

It's a more realistic solution than bundles of parachutes the size of football fields or tens of extra tons of rocket fuel, the experts said.

"With classic technology, you can land about 1.5 metric tons. That's the equivalent of a well-instrumented golf cart," Del Corso told Mashable. "With 20 to 40 metric tons, we're talking about a ranch house, fully furnished with a car in the carport. That's what you have to have."

Inflated heat shield decelerating in spaceA demonstration mission for the inflatable heat shield will launch in November. Credit: NASA

The $93 million mission is a partnership with United Launch Alliance, which will provide the ride and the recovery of the NASA equipment after the launch. The rocket will take off from Vandenberg Space Force Base in California. If all goes according to plan, the heat shield will slow down the LOFTID vehicle from over 25 times the speed of sound to under 610 mph.

The inflated system will then separate and splash down into the Pacific Ocean with a parachute near Hawaii. During the descent, it will eject a data recorder storing information about the flight that a boat will retrieve from the water.

There's something in the mission for ULA, too. The new heat shield technology could help them recover spent boosters for reuse, said Barb Egan, the company's civil space program director, referring to a notoriously expensive aspect of space travel. The business hopes to one day use it for its Vulcan heavy-lift rocket, whose thrusters make up about 60 percent of each launch cost.

"This is a giant leap in aeroshell technology," Egan said, "to be able to bring our engines back quickly, easily, safely, and reuse that technology rather than throw it away."

0.1955s , 14301.1328125 kb

Copyright © 2025 Powered by 【oiled sex videos】NASA preps new spacecraft heat shield for Mars landings,Public Opinion Flash  

Sitemap

Top 主站蜘蛛池模板: 在线观看特色大片免费视频 | 亚洲成人高清在线 | av天堂午夜精品一区 | 国产成年人免费黄色视频 | 色噜噜狠狠狠狠色综合久一 | 精品无码视频无码专区 | 国产野外一区二区理伦片视频在线 | 国产91精品国自产精品播放社区 | 精品久久久无码中文字幕天天 | 日本人妻中文字幕乱码系 | 欧美亚洲国产动漫综合第一 | 一级做a爱过程免费视频时看 | 中国一级免费 | 熟女乱色综合一区 | 麻豆精品久久久一区二区 | 精品久久久无码中文字幕边打电话 | 久久不卡二区 | 久久久精品免费视频 | 国产精品一区二区免费 | av网站在线免费观看 | 亚洲国产综合精品中文字幕 | 国产91白浆四溢 | 亚洲av永久综合在线观看红杏 | 欧美日韩亚洲中文字幕 | 国内精品久久久久久影院网站小说 | 无码A片激情做爰视频在线观看 | 久久综合老色鬼网站 | 国产午夜片无码区在线观看 | 久久亚洲av无码西西人体 | 成人黄色网址 | 18国产精品 | 欧美最骚最疯日B视频观看 欧美做愛坉片 | 久久久无码中文字幕一区二区三区 | 9191精品国产免费久久电影 | 国产精品无码无片在线观看3d | 国产精品揄拍色网视频 | 国产乱子伦精品视频一加勒比 | 国产福利不卡一区 | 高清在线精品一区二区 | 熟女人妻中文字幕在线 | 美女扒开腿让男人桶视频在线观看 |