NASA administrator Bill Nelson said Wednesday the agency will reveal the 'deepest image of our Universe that has ever been taken' on July 12, thanks to the newly operational James Webb Space Telescope.
Because the Universe is expanding, light from the earliest stars shifts from the ultraviolet and visible wavelengths it was emitted in, to longer infrared wavelengths – which Webb is equipped to detect at an unprecedented resolution.
"Not only will those 20 years allow us to go deeper into history, and time, but we will go deeper into science because we have the opportunity to learn and grow and make new observations," she said. Spectroscopy is a tool to analyze the chemical and molecular composition of distant objects and a planetary spectrum can help characterize its atmosphere and other properties such as whether it has water and what its ground is like."Right from the beginning, we'll look at these worlds out there that keep us awake at night as we look into the starry sky and wonder as we're looking out there, is there life elsewhere?" said Zurbuchen.
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