NASA's SPHEREx Telescope Observes Shape-Shifting Interstellar Comet 3I/ATLAS.

Observations of Comet 3I/ATLAS

According to Novyny.live: NASA's SPHEREx space telescope has captured significant changes in the shape and ice emissions of the interstellar comet 3I/ATLAS as it travels through our Solar System. The telescope conducted observations of the comet in August and December 2022, providing a rare opportunity to study its evolving characteristics in detail. These findings offer a unique glimpse into the behavior of objects originating from beyond our solar neighborhood.

SPHEREx possesses a unique capability to observe objects across 102 colors of infrared light, enabling scientists to gather valuable data on the comet's composition and structure. The ice of comet 3I/ATLAS is composed of:

• water,
• nitrides,
• carbon dioxide,
• carbon monoxide.

This specific chemical makeup, combined with the structure of its dust, forms an antitail, a feature characteristic of such celestial bodies.

Size and Analysis of the Comet

Initially, following its discovery, 3I/ATLAS was thought to be a potentially 'giant' comet. However, new calculations have revealed its actual size to be significantly smaller than prior estimates. In December 2022, the comet made its closest approach to Earth, allowing astronomers to conduct additional research and observations of this unique interstellar visitor.

The study of comet 3I/ATLAS using the SPHEREx telescope is crucial for understanding the evolution of interstellar objects and their influence on the Solar System. The observed changes in the comet's shape and composition may provide new insights into its origins and its interactions with solar radiation. This research also underscores the importance of infrared observations in astronomy, which allow for the collection of detailed data on objects located vast distances from Earth.