James Webb telescope may have discovered a never-before-seen substance on Pluto and Titan

A new James Webb Space Telescope study has identified a very specific wavelength of light missing from both Pluto and ...
Nature

Quasar Absorption Line Phenomena and Active Galactic Nuclei

Quasars, the most luminous subset of active galactic nuclei (AGN), reveal the interplay between supermassive black holes and their environments through distinctive absorption features imprinted on ...

Titan and Pluto exhibit the same mysterious spectral feature—and researchers can't figure out its origin

Researchers are constantly sifting through new spectral data gathered by powerful telescopes, like the James Webb Space ...
Astronomy

How do you distinguish between absorption lines that originate in a distant astronomical object and those from Earth’s atmosphere?

Various physical mechanisms broaden the intrinsic absorption lines. The most important is that the random motions of the absorbing atoms cause “Doppler broadening.” Larger motions within the object, ...
Nature

Absorption Line Spectroscopy in High-Redshift Galaxies

Absorption line spectroscopy is a cornerstone technique for probing the gas content, chemical enrichment and kinematics of galaxies in the early universe. By analysing the dark imprints left by ...