Name: The US Air Force wants to beam solar power to Earth from space (video)
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The US Air Force wants to beam solar power to Earth from space (video)

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Space is supported by its audience. When you purchase through links on our site, we may earn an affiliate commission. .won't be just a sci-fi dream forever, if things go according to the U.S. Air Force's plans.The Air Force Research Laboratory (AFRL) is developing a project called SSPIDR ("Space Solar Power Incremental Demonstrations and Research"), which aims to mature the technology needed to harvest solar energy in space and beam it down for use on .Such a capability would be a big advantage on the battlefield, Air Force officials said.Related: "Ensuring that a forward operating base maintains reliable power is one of the most dangerous parts of military ground operations. Convoys and supply lines are a major target for adversaries," states the narrator of a new .&nbsp;"Ground-based solar, while seemingly an attractive solution, is limited by area, the size of collectors required and climate," the narrator adds. "But if the solar panels were in orbit, they could have unfettered access to the sun's rays, providing an uninterrupted supply of energy."The AFRL envisions sunlight-harvesting satellites equipped with innovative "sandwich tiles," which will convert solar energy into radio frequency (RF) power and beam it to Earth. Down here, receiving antennas will transform that RF energy into usable power.The AFRL won't build such an operational system, but it hopes to pave the way toward it with SSPIDR, a series of ground and flight experiments that help mature the required technologies.&nbsp;Related: For example, one SSPIDR experiment, known as Arachne, will test power conversion and beaming in space using a sandwich tile built by project partner . Arachne is scheduled to launch to Earth orbit in 2024.SSPIDR also includes experiments called SPINDLE and SPIRRAL, which will demonstrate the orbital deployment of a scaled-down version of a power-beaming satellite and test ways to keep satellite temperatures in a manageable range, respectively.SPINDLE is scheduled to launch in 2023 on Alpha Space's Materials International Space Station Experiment Flight Facility, which is designed to be deployed outside the .And there's already some space solar power research going on over our heads. The Photovoltaic Radio-frequency Antenna Module Flight Experiment, or PRAM-FX, launched aboard the U.S. Space Force's robotic in May 2020.&nbsp;PRAM-FX isn't beaming power down to Earth, but it is helping researchers gauge the efficiency of sandwich tiles' sunlight-to-RF conversion. And the early returns are promising, .Mike Wall is the author of "" (Grand Central Publishing, 2018; illustrated by Karl Tate), a book about the search for alien life. Follow him on Twitter @michaeldwall. Follow us on Twitter @Spacedotcom or Facebook.&nbsp;to keep talking space on the latest missions, night sky and more! And if you have a news tip, correction or comment, let us know at:Get breaking space news and the latest updates on rocket launches, skywatching events and more!Thank you for signing up to Space. You will receive a verification email shortly.There was a problem. Please refresh the page and try again.MORE FROM SPACE...12345

Space is supported by its audience. When you purchase through links on our site, we may earn an affiliate commission. .won't be just a sci-fi dream forever, if things go according to the U.S. Air Force's plans.The Air Force Research Laboratory (AFRL) is developing a project called SSPIDR ("Space Solar Power Incremental Demonstrations and Research"), which aims to mature the technology needed to harvest solar energy in space and beam it down for use on .Such a capability would be a big advantage on the battlefield, Air Force officials said.Related: "Ensuring that a forward operating base...

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Senior Writer, http://Space.com. Author of “Out There,” book about alien-life search that was published Nov. 2018. Former herpetologist.

Mike Wall

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The US Air Force wants to beam solar power to Earth from space (video)

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