NASA to Launch Artificial Star to Enhance Precision in Astronomical Research

NASA is preparing to launch an artificial star into space, a mission aimed at answering some of the universe’s most profound mysteries. Led by researchers at George Mason University, the $19.5 million project will help scientists calibrate telescopes and measure stellar brightness with greater precision. Named after astronomer Arlo Landolt, who was instrumental in cataloging stellar brightness, this mission marks a significant leap in astrophysical research.

Mission Aims to Revolutionize Space Observation  

The artificial star, set to launch by 2029, will serve as a reference point for ground-based telescopes. Its precisely calibrated photon emissions will be measured alongside real stars, improving our understanding of stellar evolution and helping to determine the rate at which the universe is expanding. With the aid of eight lasers, the satellite will transmit beams to telescopes, allowing astronomers to fine-tune their instruments for better data collection.

"This mission focuses on measuring fundamental properties essential to astronomical observations," said Eliad Peretz, NASA Goddard mission and instrument scientist, and deputy principal investigator of the mission. “It may change the way we understand the properties of stars, their surface temperatures, and the habitability of exoplanets.”

The artificial star will orbit 22,236 miles above Earth, appearing stationary to telescopes due to its synchronized speed with Earth’s rotation. While invisible to the naked eye, the star will be visible through private telescopes, providing a crucial tool for astronomers to enhance the accuracy of their observations.