NASA's Nancy Grace Roman Space Telescope team has begun integrating and testing the spacecraft's electrical cabling, or harness, which enables different parts of the observatory to communicate with one another. Additionally, the harness provides power and helps the central computer monitor the observatory's function via an array of sensors. This brings the mission a step closer to surveying billions of cosmic objects and untangling mysteries like dark energy following its launch by May 2027.
, Roman's harness connects its components, providing both power and commands to each electronic box and instrument," said Deneen Ferro, the Roman harness project development lead at NASA's Goddard Space Flight Center in Greenbelt, Maryland."Without a harness, there is no spacecraft."
Weighing around 1,000 pounds, the harness is made up of approximately 32,000 wires and 900 connectors. If the wires were laid out end-to-end, they would span 45 miles. Directed upward, they would reach eight times higher than the peak of Mount Everest. The entire harness was built on an observatory mock-up structure before being transported to Goddard's Space Environment Simulator—a massive thermal vacuum chamber used in this case for"bakeout.
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James Webb Space Telescope offers a mesmerizing look at the Ring Nebula (photos)Monisha Ravisetti is Space.com's Astronomy Editor. She covers black holes, star explosions, gravitational waves, exoplanet discoveries and other enigmas hidden across the fabric of space and time. Previously, she was a science writer at CNET, and before that, reported for The Academic Times. Prior to becoming a writer, she was an immunology researcher at Weill Cornell Medical Center in New York. She graduated from New York University in 2018 with a B.A. in philosophy, physics and chemistry. She spends too much time playing online chess. Her favorite planet is Earth.
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