Interstellar Comet 3I/ATLAS Under Scrutiny by NASA Fleet
The interstellar comet 3I/ATLAS has captured the attention of both experts and the public as only the third confirmed object to enter our Solar System from interstellar space. Despite sensationalized claims circulating online, a wealth of data is being gathered through careful observation. Recent coverage highlighted observations by the European TGO probe near Mars, and now NASA has unveiled a thorough collection of new images.
A total of 12 NASA probes contributed to the study of 3I/ATLAS, providing scientists with a unique opportunity to analyze its differences from comets originating within our solar System. This comparative study offers valuable insights into the composition of other star systems.
Images captured during 3I/ATLAS’s closest approach to Mars – approximately 30.5 million kilometers – represent the shortest distance ever recorded by NASA probes. The Mars Reconnaissance Orbiter (MRO) provided the moast detailed images to date, while the Mars Atmosphere and Volatile evolution (MAVEN) probe utilized ultraviolet imaging to determine the comet’s composition. Even the Perseverance rover on the Martian surface detected a faint trace of the comet’s light.
Beyond the Mars-based observations, heliophysics missions like STEREO and SOHO tracked the comet’s movement during its passage behind the sun, when it was obscured from Earth-based telescopes. The newly launched PUNCH mission also contributed, revealing details of the comet’s tail through images taken between September 20 and October 3.
NASA’s Psyche mission captures Images of Interstellar Comet 3I/ATLAS
the NASA Psyche mission, while en route to its primary destination – the metal-rich asteroid Psyche – has opportunistically observed the interstellar comet 3I/ATLAS.Between September 8th and 9th,2025,the spacecraft acquired four observations of the comet when it was approximately 53 million kilometers (33 million miles) away. https://www.nasa.gov/missions/psyche/psyche-observes-interstellar-comet/
These observations, captured by Psyche’s multispectral imager, are proving valuable to astronomers. The data is helping to refine the comet’s trajectory and provide insights into its faint coma – the cloud of gas and dust surrounding the comet’s nucleus. https://www.nasa.gov/missions/psyche/psyche-observes-interstellar-comet/
3I/ATLAS is only the third confirmed interstellar comet to visit our solar system. It was frist discovered in june 2019 by the Asteroid Terrestrial-impact Last alert System (ATLAS) telescopes in Hawaii. Unlike most comets originating from within our solar system, interstellar comets come from beyond the oort Cloud, a region marking the edge of the Sun’s gravitational influence. https://skyandtelescope.org/observing/comets/interstellar-comet-3i-atlas-is-visiting-the-inner-solar-system/
The Psyche mission’s observations complement data gathered by other spacecraft, including the Mars Reconnaissance Orbiter (MRO) and the mars Atmosphere and Volatile Evolution (MAVEN) mission. These combined observations provide a multi-faceted view of this unique interstellar visitor.
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