#科技头条#【NASA将用这22个项目助力宇宙探索】

#科技头条#【NASA将用这22个项目助力宇宙探索】NASA投资了22个项目来推进我们探索宇宙的进程,其中包括真空火星飞船和人造重力提升。真空火星飞船可保护仪器免受太阳辐射和高能粒子辐射,还能在短时间内探索更大的区域。人造重力提升可以克服微重力,减少甚至消除宇航员在太空探索过程中的生理退化。这22个仿佛只存在于科幻小说中的技术正离我们越来越近。

From an artificial gravity chamber and a fuel free engine to a Martian airship: NASA funds 22 sci-fi proposals that could ‘expand how we explore the universe’

Space agency is investing in 22 early-stage projects for further development

Phase I awardees are granted roughly $125,000 for a nine month study

In Phase II, awards can be as high as $500,000 for two-year studies Selected proposals include vacuum Martian airship and artificial gravity lift

From a vacuum Martian airship to an artificial gravity chamber, NASA has revealed a host of new proposals that could push human and robotic exploration of space even further.

The space agency is investing in 22 early-stage projects for further development, many of which tap into ideas that once existed only in science fiction.

While the radical projects could take years before they can be used in a NASA mission, if at all, the agency says they could soon ‘expand how we explore the universe.’

Among the proposals, NASA invested in a radical idea to create a sci-fi-like Mach Effect Thruster propulsion system. This would produce thrust ¿without the irreversible ejection of propellant, eliminating the need to carry propellant'

Among the proposals, NASA invested in a radical idea to create a sci-fi-like Mach Effect Thruster propulsion system. This would produce thrust ‘without the irreversible ejection of propellant, eliminating the need to carry propellant'

NASA has selected Phase I and II awards for its 2017 Innovative Advanced Concepts portfolio.

One notable Phase I concept calls for an ‘Evacuated Airship for Mars Missions.’

This would operate ‘similar to a standard balloon,’ relying on a rigid structure to maintain a vacuum to displace air and provide lift.

Such a device could work in the Martian atmosphere using a multi-layer approach with a lattice structure, and would be a ‘valuable design for a vehicular probe,’ according to the proposal by John-Paul Clarke of Georgia Institute of Technology.

‘The vacuum airship could use its structure to protect the instruments from solar radiation and high energy particle,’ the proposal explains.

The airship device could work in the Martian atmosphere using a multi-layer approach with a lattice structure, and would be a ¿valuable design for a vehicular probe,¿ according to the proposal by John-Paul Clarke of Georgia Institute of Technology

The airship device could work in the Martian atmosphere using a multi-layer approach with a lattice structure, and would be a ‘valuable design for a vehicular probe,’ according to the proposal by John-Paul Clarke of Georgia Institute of Technology

‘The vacuum airship probe would be able to traverse a much greater area of the planet in a smaller amount of time because there is no need to worry about getting stuck, and the vacuum airship can also observe a greater swath of land by rising in elevation.

‘Even though the vacuum airship would be aerially base, the vehicle would still be able to touch down and perform tasks on the ground; it is even possible the vacuum airship could be used to transport ground probes to different locations.’

Another proposal, submitted by Jay McMahon of University of Colorado, Boulder, seeks to create a soft robotic spacecraft that can dismantle rubble pile asteroids.

To do this, the ‘Area-of-Effect Soft-bots’ (AoES) would use adhesive forces to anchor itself.

One of the proposals seeks to create a soft robotic spacecraft that can dismantle rubble pile asteroids. After freeing the material form the asteroid, the robot would launch it from the surface to be collected by an orbiting craft

One of the proposals seeks to create a soft robotic spacecraft that can dismantle rubble pile asteroids. After freeing the material form the asteroid, the robot would launch it from the surface to be collected by an orbiting craft

Then it would free the material from the asteroid, and launch it from the surface to be collected by an orbiting craft.

The space agency has also revealed a proposal for a ‘Turbolift’ device that could combat the effects of microgravity during long-duration missions.

Astronauts are known to experience bone loss, muscle atrophy, cardiovascular deconditioning, sensorimotor/balance impairment, and vision changes as a result.

But, the new type of linear artificial gravity technology, dubbed the Turbolift, could reduce or even eliminate physiological deconditioning.

A proposal from Nan Yu, of NASA¿s Jet Propulsion Laboratory, aims to directly detect dark energy based on interactions with normal matter. This would rely on a solar system laboratory that would fly ¿unscreened atomic particles through special gravitational field regions¿

A proposal from Nan Yu, of NASA’s Jet Propulsion Laboratory, aims to directly detect dark energy based on interactions with normal matter. This would rely on a solar system laboratory that would fly ‘unscreened atomic particles through special gravitational field regions’

By this design, ‘the astronaut is linearly accelerated at 1G for ~1s, then is rotated 180 degrees to prepare for a 1G deceleration for ~1s.

‘This process is repeated to create intermittent AG where the force is always headward similar to standing here on Earth.

‘The experience is likely to be analogous to bouncing mildly on a trampoline.’

A proposal from Nan Yu, of NASA’s Jet Propulsion Laboratory, aims to directly detect dark energy based on its interactions with normal matter.

This would rely on a solar system laboratory that would fly ‘unscreened atomic particles through special gravitational field regions.’

Dark energy is thought to make up roughly 68 percent of the universe, and the scientists hope this could finally help them obtain a direct detection.

‘This could lead to a fundamental shift in our understanding of fundamental physics and our universe, stimulating a wide variety of foundational research in cosmology and particle physics,’ the proposal explains.

And, the agency has also invested in a radical idea to create a Mach Effect Thruster propulsion system.

This would produce thrust ‘without the irreversible ejection of propellant, eliminating the need to carry propellant as required with most other propulsion systems,’ the proposal by Heidi Fearn of the Space Studies Institute explains.

Such a device does not expel fuel mass, and opens the door for ‘very high velocities.’

Phase I awardees are granted roughly $125,000 for a nine month study to define and analyze the initial concepts.

After this, they can apply for Phase II.

And in Phase II, awards can be as high as $500,000 for two-year studies to further develop these concepts.

The space agency has also revealed a proposal for a ¿Turbolift¿ device that could combat the effects of microgravity

The space agency has also revealed a proposal for a ‘Turbolift’ device that could combat the effects of microgravity

http://www.dailymail.co.uk/sciencetech/article-4392150/NASA-develop-artificial-gravity-device.html


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