Gamma-ray flashes, also called "dark lightning," are invisible to the naked eye, but can produce radiation similar to a full-body CT scan -- a phenomenon that warrants further study, scientists say. As a result, many are calling for dedicated Earth-gazing satellites that can directly study the dark lightning. "It's really a brand-new thing to realize this could happen deep in our atmosphere with something as ordinary as a thunderstorm," said physicist Joseph Dwyer.

Full Story:
Our Amazing Planet

Related Summaries