Astronomers have discovered the third interstellar object to enter our solar system, known as 3I/ATLAS.
According to NASA, 3I/ATLAS is classified as interstellar due to its hyperbolic orbital path, meaning it does not follow a closed orbit around the Sun.
When the orbit of 3I/ATLAS is traced into the past, the comet clearly originates from outside our solar system.
Initial observations showed that the object is a coma, a cloud of gas and dust, rather than a large asteroid. However, its speed of 130,000mph is too fast for it to be gravitationally bound by the Sun.
No one knows where the comet came from. It’s like glimpsing a rifle bullet for a thousandth of a second.
Author's summary: Scientist puzzled by interstellar object's origin.