Too soon to panic

An object several miles wide will zoom into our solar system at a speed of 37 miles per second in due course. Missing the Earth, so no need to worry about a collision.
    Most astronomers think it’s a comet and it will whizz off into space again after going round the Sun at the end of the month. But one Harvard professor is getting himself noticed by trying to make us believe it’s a (hostile) monster spaceship built by aliens.
    The James Webb Space Telescope will soon get a good look at the object and confirm it’s a comet, not a craft built by an advanced alien civilization. Or not.