Mon Oct 06 09:50:00 UTC 2025: Okay, here’s a summary of the text and a news article based on it:

**Summary:**

On October 4, 2025, the Perseverance rover on Mars captured an image of the interstellar object 3I/ATLAS. The image showed an elongated stripe, leading to speculation about the object’s shape. However, an analysis by Harvard Professor Avi Loeb determined that the stripe is an artifact created by the rover’s camera taking multiple images over about 10 minutes as 3I/ATLAS moved across the Martian sky. While the object itself is estimated to be much smaller, the long exposure time smeared the image, creating the elongated appearance. Other Mars orbiters and rovers, including the Mars Reconnaissance Orbiter with its HiRISE camera, also captured images of 3I/ATLAS, with hopes that the HiRISE image will provide the best constraint on the area of 3I/ATLAS.

**News Article:**

**Martian Mystery: Perseverance Rover Captures Elongated Image of Interstellar Object, But is it a Trick of the Light?**

**Mars, October 26, 2025** – A recent image taken by NASA’s Perseverance rover on Mars has sparked intrigue and debate online. The image, captured on October 4, 2025, shows what appears to be an elongated stripe in the Martian sky, identified as the interstellar object 3I/ATLAS. The unusual shape led some to wonder if the object was far larger than previously thought.

However, according to Harvard Professor Avi Loeb, there’s a more mundane explanation. Loeb, a renowned astrophysicist and head of the Galileo Project, analyzed the image and concluded that the elongated shape is likely an artifact of the camera’s imaging process.

“The stripe in the Navcam image must have resulted from stacking hundreds of Navcam images over a total time interval of about 10 minutes,” Loeb explained. The Navcam, or Navigation Camera, on Perseverance has a limited angular resolution. Combined with the motion of 3I/ATLAS relative to Mars at a speed of about 67 kilometers per second, the long integration time caused a smearing effect, stretching the object’s appearance.

While 3I/ATLAS was around 38 million kilometers from Mars at the time of the image, Loeb’s calculations suggest the “stripe” is a result of the object’s movement during the camera’s exposure time. The true size of 3I/ATLAS is estimated to be much smaller, no larger than 46 kilometers in diameter.

Loeb’s analysis has been supported by comparisons with earlier images from the Hubble Space Telescope. The Hubble images show 3I/ATLAS as a far smaller object. “3I/ATLAS shared the experience of a movie star with lots of cameras from 7 Mars orbiters and a ground-based rover taking snapshots of it as it passed across the Martian sky,” Loeb stated.

The mystery might not be entirely solved yet. Scientists are eagerly awaiting the release of images taken by the HiRISE camera aboard the Mars Reconnaissance Orbiter. HiRISE has a higher resolution and will provide the best constraint on the area of 3I/ATLAS.

“The brightest pixel in the HiRISE image will provide the best constraint yet on the area of 3I/ATLAS,” Loeb concluded.

As 3I/ATLAS continues on its interstellar journey, the brief encounter has provided scientists with valuable data and a reminder that even on Mars, appearances can be deceiving.

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