A striking new image of the strange interstellar object 3I/ATLAS has revealed it is growing a tail, offering more proof that it is a comet visiting our Solar System.
The suspected comet, discovered on 1 July, is only the third known interstellar object to pass through the Solar System – after Comet 1I/ʻOumuamua in 2017, and Comet 2I/Borisov in 2019.