To search for alien life, astronomers will search for clues in the atmospheres of distant planets – and NASA's James Webb Space Telescope just proved it’s possible to do so. The ingredients necessary for life are spread throughout the universe. While Earth is the only known place with life in the
. If the atmosphere or surface was transformed by life, the light may carry a clue, called a “biosignature.”
When light bounces off the surface of a material or passes through a gas, certain wavelengths of the light are more likely to remain trapped in the gas or material’s surface than others. This selective trapping of wavelengths of light is why objects are different colors. Leaves are green because chlorophyll is particularly good at absorbing light in the red and blue wavelengths.
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James Webb Space Telescope is about to beam us monster amounts of cosmic dataOver the next few days, JWST will release roughly 50 terabytes of data—more than 400 times Hubble’s weekly transmission—to the public.
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