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The latest discovery of the James Webb telescope brought with it new mysteries

The James Webb telescope detected water vapor around a comet in the main asteroid belt. This discovery also brings with it a new mystery.
 The latest discovery of the James Webb telescope brought with it new mysteries
READING NOW The latest discovery of the James Webb telescope brought with it new mysteries

The James Webb Space Telescope made its second groundbreaking observation in a matter of weeks. The researchers used the telescope’s near-infrared camera to detect the first known sample of water vapor around a comet in the main asteroid belt, also known as a main belt comet.

Scientists already thought that comets could maintain glaciers when they were relatively close to the Sun, but until now they had no conclusive evidence. It was generally assumed that comets were located in the Kuiper Belt or the Oort Cloud, both of which were far enough from the Sun for the ice to withstand.

This finding, however, created a new puzzle. While carbon dioxide normally represents 10 percent of potentially vaporized material in a comet, Webb’s instruments were unable to detect it in the comet called Read. The research group estimates that CO2 either dissipates over billions of years or forms in a relatively warm part of Read’s Solar System that lacks CO2.

Read was one of the first objects used to form the main belt comet category. We can only observe them now, as the Webb telescope is the first equipment powerful enough to study these comets in detail.

More observations will be required to determine whether Read’s CO2 deficiency is a coincidence or something shared by other main belt comets. Team member Stefanie Milam suggests that the sample collection mission could help learn more about comets like this one.

The Kuiper Belt begins roughly at the edge of Neptune’s orbit, while the Oort Cloud is roughly two light-years away.

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