Could two colliding comets near Earth cause devastation?

Question

Let's say two comets crashed into each other. If it was 0.1 AU away from the Earth, would the collision cause mass destruction here, or not affect us at all?

Answer 1

Unfortunately, yes.

The thing about comets is they can be huge or small. Tgey can come out of nowhere flying at varying speeds through space. This makes the hardware to track down and predict their location and impact potential.

It two comets collided near earth one of two things would occur. One, they burst into dust, no harm done.

Or they form a larger comet that potentially may cause devastation to Earth.