Big light in sky slated to appear in east.
(AP) Astronomers say a small asteroid is about to make a fiery but harmless dive into Earth's atmosphere early Tuesday morning over Africa.
Harvard scientists announced late Monday afternoon that the unnamed asteroid will burn up in the sky, making a fireball that people in northern Africa should be able to see.
The rock is between 3 feet and 15 feet in diameter.
It's expected to enter Earth's atmosphere above Sudan at 10:46 p.m. EDT Monday, which is just before dawn in Africa.