"The new study has also given scientists a good look at the comet's coma and helped to identify large amounts of dust and water ice surrounding its nucleus. These additional findings are further evidence that 3I/ATLAS is a natural comet rCo not a disguised probe sent here by an advanced alien civilization, as some researchers have controversially proposed in recent weeks."
Its speed which is greater than solar escape velocity shows that it came in from interstellar space and will return there.
The object will pass on the opposite side of the sun when near Earth and
would see us lit in daylight, so we shouldn't have to black out the lights
at night to hide.