NASA has unveiled remarkable new images of interstellar comet 3I/ATLAS, revealing a bright point of light surrounded by a halo of gas and dust. This comet is only the third confirmed visitor from outside our solar system, eliciting interest from scientists and astronomy enthusiasts.
Details of the Images
The images of comet 3I/ATLAS, taken by various NASA spacecraft, depict it as an illuminated dot, often accompanied by a faint, elongated tail. These were captured in a series of stacked images taken between September 11 and 25, with the comet traveling at an impressive speed of 130,000 miles per hour. The long-awaited images were delayed due to a government shutdown but have now provided new insights into this interstellar marvel.
Scientific Background
Discovered in July, comet 3I/ATLAS joined a rare group of interstellar objects, following ‘Oumuamua in 2017 and comet 2I/Borisov in 2019. While speculation arose about the comet potentially being an alien spacecraft, NASA has confirmed that its characteristics align with typical comet behavior.
Upcoming Opportunities for Observation
Scientists will have additional opportunities to study comet 3I/ATLAS, particularly between September 28 and October 10. During this period, the comet was located 231 to 235 million miles away. It is anticipated to reach its closest point to the sun by the end of October, which constrained visibility from ground-based telescopes.
Future Trajectory
- Re-emergence: 3I/ATLAS is expected to reappear in early December after passing behind the sun.
- Flyby Date: On December 19, the comet will fly by Earth.
- Safe Distance: It will be approximately 170 million miles away, posing no threat to our planet.
Global Monitoring Efforts
The European Space Agency (ESA) also contributed to the observation of 3I/ATLAS through its ExoMars Trace Gas Orbiter. This spacecraft captured images of the comet as it neared Mars, approximately 18.6 million miles away. These collaborations bolster our understanding of this rare cosmic visitor.
In summary, the images of interstellar comet 3I/ATLAS provide scientists with a chance to explore an object from beyond our solar system, enhancing our knowledge of interstellar phenomena.
