The mysterious interstellar object, 3I/ATLAS, that is said to be travelling through our solar system at 2,09,215 kmph, has brightened 40-fold since September began. Astronomers Gerald Rhemann and Michael Jäger shared latest picture of the object. "It has...green atmosphere (coma) about 5 arcminutes in diameter and tail that continues to point toward Sun...opposite of usual direction," they said.