Science, Space and Technology News 2024
The plane of our Milky Way galaxy, as seen by ESA’s Gaia space mission. It contains more than a billion stars, along with darker, dusty regions Gaia couldn’t see through. With its greater sensitivity and longer wavelength coverage, NASA’s Nancy Grace Roman Space Telescope’s galactic plane survey will peer through more of the dust and reveal far more stars. Credit: ESA/Gaia/DPACteam has announced plans for an unprecedented survey of the plane of our Milky Way galaxy.
A galactic plane survey was the top-ranked submission following a 2021 call for Roman survey ideas. Now, the scientific community will work together to design the observational program ahead of Roman’s launch by May 2027. “That would be pretty close to a complete census of all the stars in our galaxy, and it would only take around a month,” said Roberta Paladini, a senior research scientist at Caltech/IPAC in Pasadena, California, and the white paper’s lead author. “It would take decades to observe such a large patch of the sky with the Hubble or James Webb space telescopes.
“We can do very detailed studies of things like star formation and the structure of our own galaxy in a way that we can’t do for any other galaxy,” Paladini said.
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