On December 19, 2025, a fascinating celestial event will unfold. The interstellar comet 3I/ATLAS will make its closest approach to Earth, providing a rare opportunity for astronomers and space enthusiasts alike.
Key Facts About Comet 3I/ATLAS
- Discovery Date: July 1, 2025
- Origin: The comet was first identified through images taken in June 2025 by the Asteroid Terrestrial-impact Last Alert System (ATLAS) in Chile.
- Diameter: Estimated to be between 1,000 feet (320 meters) and 3.5 miles (5.6 kilometers).
- Speed: Traveling at approximately 130,000 miles per hour (209,000 kilometers per hour).
- Closest Approach: 168 million miles (270 million kilometers) from Earth.
- Date and Time of Closest Approach: 1 a.m. EST (6 a.m. GMT) on December 19, 2025.
- Visibility: The comet will not be visible to the naked eye or with basic binoculars.
Observing the Comet
For those keen on witnessing this interstellar visitor, the best viewing options involve telescopes. Whether a personal telescope or one at a nearby observatory, the comet will be observable around its closest approach. Skywatching apps can also help locate 3I/ATLAS in the night sky.
Safety and Expectations
It’s important to highlight that there is no risk of 3I/ATLAS colliding with Earth. This makes the event a safe and intriguing occasion for observation. After December 19, the comet will remain visible for several months, albeit gradually fading as time goes on.
Mark your calendars for tonight, as the closest look at the interstellar comet 3I/ATLAS presents an exciting chance to learn about material from beyond our solar system and gain insights into planetary formation. Don’t miss this extraordinary event!
