Scientists discover how to build a spacecraft that crosses the solar system in record time

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Scientists discover how to build a spacecraft that crosses the solar system in record time

Scientists discover how to build a spacecraft that crosses the solar system in record time

Scientists claim to have discovered the basics of building a spacecraft that would reach another solar system in our lifetime. February 19, 2022, Sputnik Brazil

2022-02-19 T22: 13-0300

2022-02-19 T22: 13-0300

2022-02-20T07: 50-0300

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Groundbreaking Starshot researchers have discovered a way to build a spacecraft capable of traveling at one-fifth the speed of light to reach Alpha Centauri in just 20 years. Instead of using the thousands of years that would be needed with today’s chemical engines. Otherwise, nuclear-powered spacecraft are used, and a trip to a planet orbiting Centauri at Alpha Centauri would likely require thousands of years. For example, Voyager 1, which is currently traveling at 17,043 km/s relative to the Sun, will reach Proxima Centauri in 73,775 years. To achieve this, the scientists’ goal is to travel at one-fifth the speed of light using a laser string. , located on a ground station, to propel a microscopically thick solar sail just three meters in diameter. Like a space sailboat, such a sail would drag microscopic-sized probes to Alpha Centauri, the closest star system to Earth, located just 4.37 light-years away. At the speed of one-fifth of light, the Starshot spacecraft will reach its destination in about 20 years. Once there, its hypothetical signal will reach our planet in just under four and a half years. The project, which includes former NASA research center director Pete Worden, has published studies solving two fundamental problems with the technology. The first study indicates what these sun sails should really look like. Contrary to the ideas that we had until recently, the sails would not be flat, quite the contrary, they would have to be inflated like the sails of a sailboat so that they do not break, with a curvature as deep as its width. Only then, according to the study, will it be able to withstand the excessive acceleration to which it will be subjected. According to the study’s other authors, Matthew Campbell of the University of Pennsylvania, “Laser photons fill a sail, much like air fills a beach ball.” veil idea [solar] The light has been around for a while, but we just figured out how to make sure this project will survive the flight,” says another scientist involved in the study. The second major achievement of the project is the dissipation of heat from the lasers that will drive the sail to accelerate the sail materials, which will be made from sheets of aluminum oxide and molybdenum disulphide, will not withstand the accumulation of energy caused by the laser alone. If the sails absorb even a small part of the incident laser light, it will heat up. That’s why scientists suggest ways to “maximize their ability to radiate heat.” , which is the only mode of heat transfer available in space. The solution lies in nanotechnology. Only by increasing the effective area of ​​the sail using nano-texture etching will it be possible to effectively cool the sail, allowing it to move relatively quickly without being torn to shreds.

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science, science and technology, solar system, spaceship, spacecraft, alpha centauri, space travel, space, space exploration, deep space, spacecraft

Groundbreaking Starshot researchers have discovered a way to build a spacecraft capable of traveling in Five the speed of light To get to Alpha Centauri by only 20 years old.

Discovery, if proven, enables humanity to do so Explore a star in a reasonable time instead of The use of thousands of years that would be required with current chemical actuators.

If non-nuclear-powered spacecraft are used, a travel To a planet that revolves around her The next centaur, on Alpha Centauri, would probably require thousands of years. For example, Voyager 1, which is currently traveling at 17,043 km/s relative to the Sun, could reach The next centaur At 73,775 years old.

To achieve this, the scientists’ goal is to travel at one-fifth the speed of light using a laser serieslocated in a ground station, to propel a microscopically thick solar sail just three meters in diameter.

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like a spaceship, This sail would pull the sensors The microscopic size of the Alpha Centauri system, the closest star system to Earth, is “just” 4.37 light-years away.

At the speed of one-fifth of light, the Starshot spacecraft will reach its destination in about 20 years. Once there, its hypothetical signal will reach our planet in less than four and a half years.

The project, which has former NASA Ames Research Center director Pete Worden in its ranks, published studies that found a solution. Two basic problems technology to apply.

The first study points This way Solar candles really should have. Contrary to the ideas that we had until recently, the sails will not be flat, quite the contrary.
They must be extinguished like candles. sailboats to avoid they break, with a curve as deep as their width. Only then, according to the study, will it be able to withstand the excessive acceleration to which it will be subjected.

According to the study’s other author, Matthew Campbell of the University of Pennsylvania, “Laser photons will fill a sail, much like air fills a beach ball.”

candle idea [solar] Levity has been around for a while, but we just figured out how to keep this project alive,” says another scientist involved in the study.

the Monday The great success of the project is Heat dissipation bundle Laser beams that drive the sail to speed up the ship.

The sail materials, which will consist of sheets of aluminum oxide and molybdenum disulphide, will not withstand the energy buildup caused by the laser alone. If the candles even suck one A small part of the incident laser lightIts temperature will rise to very high temperatures.

Therefore, scientists have suggested ways to “Maximize your ability to emit heatIt is the only heat transfer method available in space. “The solution lies in nanotechnology.

Only by increasing the effective area of ​​the sail using a nanoscopic fabric pattern would it be possible to effectively cool the sail, allowing it to move relatively quickly without being torn to shreds.

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