Interstellar Comet Passes Mars, Monitored by Spacecraft Fleet

A comet from a distant star system is set to pass by Mars on Friday, drawing the attention of a fleet of spacecraft. Known as 3I/Atlas, this interstellar comet will come within 18 million miles (29 million kilometers) of the red planet during its journey through the inner solar system.
Key Details of the Interstellar Comet Pass
The comet is traveling at an astonishing speed of 193,000 mph (310,000 kph). This event marks the third time an interstellar object has been observed approaching the solar system.
Spacecraft Monitoring the Comet
- The European Space Agency (ESA) operates two satellites around Mars that are currently directing their cameras toward 3I/Atlas.
- NASA’s Martian satellite and rovers are also prepared to assist with observations.
- ESA’s Juice spacecraft, which is en route to Jupiter, will continue monitoring the comet throughout November.
Key Dates and Distances
- Closest approach to Mars: Friday, within 18 million miles (29 million kilometers).
- Closest approach to the sun: Late October 2023.
- Closest approach to Earth: December, passing within 167 million miles (269 million kilometers).
Size and Composition of the Comet
Observations from the Hubble Space Telescope indicate that 3I/Atlas has a nucleus measuring between 1,444 feet (440 meters) and 3.5 miles (5.6 kilometers) across. Fortunately, the comet poses no threat to Earth or any neighboring planets.
The upcoming encounter with 3I/Atlas offers a unique opportunity for scientific observation and study, contributing to our understanding of interstellar objects.