91色情片

Gege Li

More from Gege Li

Explore the latest news, articles and features

AHF347_004_S1 The team behind the "umbrella-like" deployable heat shield design called ADEPT, or the Adaptable, Deployable, Entry and Placement Technology, is testing out a new material to deliver science payloads on future missions to Mars and beyond. Called Spiderweave, the new woven fabric will make it safer for larger vehicles to safely pass through the atmosphere of more distant locations. It can also be packed up at launch and stored in a compact space. When sending science to other worlds, saving space and enabling safer atmospheric entries are top priorities. ADEPT could help achieve both of these goals. Previous ADEPT heat shield iterations involved stitching together individual panels to comprise the heat shield. But engineers found that could often lead to points of increased stress and other discontinuities within the material. Spiderweave uses a new design architecture where materials are continuously woven into the heat shield?s fabric, avoiding these issues. This summer, Spiderweave was put to the test in the arc jet facilities at NASA?s Ames Research Center in California?s Silicon Valley, where the ADEPT team observed how the material held up when exposed to temperatures above 3,000 degrees Fahrenheit. Those extreme temperatures mimic the conditions a vehicle experiences when entering a planetary atmosphere. Building on the previous work of the ADEPT project, including a sounding rocket flight test in 2018, supported by NASA?s Flight Opportunities program, where the heat shield was deployed in space and safely returned to Earth, the Spiderweave material is making science possible on worlds both near and far. ADEPT is funded by the Game Changing Development program within NASA?s Space Technology Mission Directorate, with support from the Flight Opportunities program. The textile company Bally Ribbon Mills developed the Spiderweave Material as a part of NASA?s Small Business Innovation Research program.

Technology

NASA tests a new heat shield featuring Spiderweave

Life

Spiralling school of jack fish image takes photography prize

Nine Perfect Strangers

91色情片

Nine Perfect Strangers review: A gripping wellness retreat drama

Life

Amazing images show butterfly mouthparts up close

Humans

Striking image of covid-19 clean-up is among photo contest finalists

Mind

How opium, caffeine and mescaline shaped the world 鈥� and got us hooked

Amazing image taken with a camera obscura shows photography’s origins

Life

Wild Crimes review: Shocking illegal wildlife trade exposed in podcast

Life

Amazing surfing sharks image shows how currents help them save energy

The Cave

Space

Amazing astronomy images shortlisted for photo prize

Humans

Magical image of 鈥榯ree island鈥� shortlisted for major photo prize

Space

NASA image captures powerful energy at the heart of the Milky Way