Monday, October 21, 2024

An Ancient Celestial Traveler

 


Comet C/2023 A3 Tsuchinshan-ATLAS, which likely traveled from the outer reaches of our solar system, made its closest transit past the Sun on Sept. 27 and was expected to come within approximately 44 million miles of Earth on Oct. 12.


Crew aboard the International Space Station have been observing Tsuchinshan-ATLAS on its journey through the inner solar system. An astronaut captured this photo of the comet on Sept. 19. At that time, the mass of dust, ice, and rock was approaching the closest point to the Sun on its highly elliptical orbit.


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