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| SpaceWeather |
SpaceWeather has an interesting update on Comet 3I/Atlas:
The tail of 3I/ATLAS points almost straight toward the sun. Normally, comet dust tails are pushed away from the sun by radiation pressure. 3I/ATLAS is doing the opposite—it's backwards.
Please read the rest of the report here.
There's also an article suggesting that 3I/Atlas is producing its own light, as per the very same Avi Loeb:
In the blog post, Loeb looks to the recent Hubble Space Telescope image of 3I/ATLAS.
"The image shows a glow of light, likely from a coma, ahead of the motion of 3I/ATLAS towards the Sun. There is no evidence for a bright cometary tail in the opposite direction," he writes.
"This glow was interpreted as evaporation of dust from the Sun-facing side of 3I/ATLAS."
After analysis of the light emitted by 3I/ATLAS, as described in a science paper published on 20 August 2025, Loeb then writes:
"The simplest interpretation is that the nucleus of 3I/ATLAS produces most of the light."
For more details, please visit Sky At Night Magazine.
