re: I see dark matter
You are confusing dark nebula with dark matter. The Horsehead is made of cool gas and dust, dark matter is not and is still in its theory stage for composition and regarded as invisible.
Space/Science » in reply to I see dark matter
You are confusing dark nebula with dark matter. The Horsehead is made of cool gas and dust, dark matter is not and is still in its theory stage for composition and regarded as invisible.