Could radar telescopes be the key to protecting planet Earth?
One of the best tools for protecting the planet from the impact of near-Earth objects (NEOs) like asteroids, according to a new decay survey from the National Academy of Sciences, Engineering, and Medicine. is the terrestrial planetary radar.
The decadent survey, in which researchers look ahead over the next ten years, calls for further development of radar systems to assist protect the planet by images of newly discovered NEOs. Those images can help determine the probability and severity of a potential impact. Fortunately, several such projects are being worked on by the National Radio Astronomy Observatory (NRAO), which operates telescopes globally, and the Green Bank Observatory (GBO) in West Virginia. .
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“NEO’s ground-based radar observations provide invaluable information for long-term monitoring,” the survey said. “Because the NEO’s impact energy is proportional to density, diameter, and velocity, and radar can limit all of these, planetary radar observations are an important characterization technique.” important after discovery.”
Such missions may have once been assigned to the Arecibo Observatory in Puerto Rico, which was once the most powerful radar system and radio telescope in the world. But Arecibo suddenly collapsed in December 2020, leaving a void in the industry.
However, NRAO and GBO are in the process of upgrading their Very Long Baseline Array (VLBA) in Hawaii and The Green Bank Telescope (GBT) in West Virginia to work with Arecibo when disaster struck, and two systems are now ready to help fill the gap. (Which says, NRAO made it clear that these two systems are not designed to be a complete replacement for Arecibo.)
“At NRAO and GBO, we have a long history of involvement in planetary radar research and we look forward to adding new capabilities to GBT and VLBA to produce a next generation radar system that will serves as an essential tool for researchers of planetary science and planetary defense,” said Patrick Taylor, head of radar for the NRAO and GBO, said in a statement.
The decadent survey of planetary science and planetary biology 2023–2032 published on April 19, 2022.
https://www.space.com/decadal-survey-ground-based-radar-asteroid-threat Ground-based radar could be one of our best tools against asteroids, new decadal survey finds