Military Hush-Up: Incoming Space Rocks Now Classified

For 15 years, scientists have benefited from data gleaned by U.S. classified satellites of natural fireball events in Earth's atmosphere – but no longer.

A recent U.S. military policy decision now explicitly states that observations by hush-hush government spacecraft of incoming bolides and fireballs are classified secret and are not to be released, has learned.

"It's baffling to us why this would suddenly change," said one scientist familiar with the work.