Space telescope

Researchers Investigate Changing-Look Active Galactic Nucleus in NGC 3822 Galaxy

A comprehensive 17-year study of the changing-look active galactic nucleus in NGC 3822 reveals significant flux variations across multiple wavelengths. Researchers found the changing-look behavior is driven by changes in the accretion rate around the supermassive black hole.

Long-term Study Reveals Changing Behavior in Distant Galaxy

Indian astronomers have conducted an extensive multiwavelength investigation of a changing-look active galactic nucleus in the galaxy NGC 3822, according to recent research published on the arXiv pre-print server. The study, led by researchers from the Physical Research Laboratory in Ahmedabad, analyzed data collected over 17 years to better understand the peculiar behavior of this cosmic phenomenon.

by Daniel R.CollinsOctober 15, 2025

Aerospace Earth Sciences

Interstellar Comet 3I/ATLAS Spews Water at Unprecedented Rates, Rewriting Cosmic Theories

NASA’s Swift Observatory reveals interstellar comet 3I/ATLAS is emitting water vapor at astonishing rates far from the sun. This unexpected discovery provides crucial insights into how comets form around distant star systems and challenges existing solar system models.

In a groundbreaking discovery that challenges our understanding of celestial bodies, interstellar comet 3I/ATLAS has been observed releasing water vapor at rates comparable to a fully opened fire hydrant. This remarkable finding, made possible by NASA’s space-based observatory, provides unprecedented insights into the composition and behavior of objects originating beyond our solar system while offering new perspectives on the universal presence of water in cosmic formations.