On 31 July 2025, we imaged 3I/ATLAS = C/2025 N1 (ATLAS), as part of our coverage of this exceptional object. We succeeded detecting its faint coma. The image above comes from the combination of...
On July 1st, astronomers discovered a celestial body passing through the region of the Sun, but originating from beyond the Solar System: it is 3I/ATLAS = C/2025 N1 (ATLAS). It’s the 3rd ever of this...
A new interstellar object, temporarily named A11pl3Z then officially 3I/ATLAS = C/2025 N1 (ATLAS), has been just discovered. It’s the third one ever found. We will show it live, online: join us from the...
After our first images of this unique object, we captured again the interstellar comet 2I/Borisov under excellent sky conditions, recording a coma and a tail. Here it is our new image. Few days after...
It is now official: we have the first interstellar comet ever discovered. It is named 2I/Borisov, after we called it C/2019 Q4 for a while. “I” stays for “Interstellar”. Our data was published in...
After our first observation of the interstellar comet C/2019 Q4 Borisov, we could image it again, despite a very bright Moon, the imminent sunrise and the low altitude of the target above the horizon....
For the very first time, a comet coming from the extra-solar space has been very likely discovered. Comet C/2019 Q4 Borisov has a speed and an orbital eccentricity strongly suggesting a interstellar origin. While...
– Total Lunar Eclipse (7 Sept. 2025)
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