“There is no other instrument that allows us to spectrally study such early galaxies,” said Khullar, who will continue his work as a postdoctoral researcher at the University of Pittsburgh. One of Webb’s instruments, the Near-Infrared Spectrograph, splits light to detect imprints of elements that are more abundant in older galaxies. Khullar, who recently finished his PhD at the University of Chicago, aims to find the ages of early galaxies by studying what they’re made of. The same was true for Gourav Khullar, who along with his team spent several sleepless nights writing a successful proposal to use the Webb telescope for all of 20 hours.
Keck Observatory in Hawaii, the next best alternative. UC Berkeley graduate student Aliza Beverage spent several weeks running simulations to show that the observations she wanted to make - of ancient galaxies whose light is too faint to penetrate Earth’s atmosphere - could not be carried out with the telescopes at the W.M. To have a proposal accepted, scientists must convince Webb’s keepers that their work cannot be carried out using telescopes on the ground. The world gets its first glimpse of ancient light courtesy of NASA’s Webb telescope, the most sophisticated and ambitious deep-space viewing tool yet assembled.ĭoing science from space is expensive. Science & Medicine Cosmic beauty shots from NASA’s Webb telescope
Webb will tell us “when the first lights in the universe turned on,” he said. He plans to study a specific part of the sky where galaxies seem to be overabundant. But with Webb now open for business, he can revisit his original plan to study how the first galaxies formed a few hundred million years after the big bang. That was too late for Naidu’s dissertation, which wound up being about the history of the Milky Way and how it ripped apart and absorbed other galaxies to grow to its current size. It was pushed back multiple times before it finally blasted off from French Guiana on Dec. When NASA selected a prime contractor to build the telescope in 2003, its intended launch date was set for 2010. He began his graduate program in 2017 and expected to get access to observing data, “but then there was a major, major delay,” he said. Rohan Naidu had hoped to use the Webb for his PhD thesis at the Harvard Center for Astrophysics in Cambridge, Mass.
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