How fireflies glow and what signals they're sending

You might not really be sure you saw what you think you saw when the first one shows up. But you stare in the direction of the flicker of light and there it is again—the first firefly of the evening. If you are in good ...

Flashes on the moon

It happens several times a week. Sometimes it is only short flashes of light that appear on the surface of the moon. Other light phenomena on the Earth's satellite can last longer. And sometimes there are also places that ...

First-ever constructed image of a terrestrial gamma-ray flash

Terrestrial gamma-ray flashes occur above some thunderstorms and propagate out into space. These high-energy discharges of photons were only discovered less than 25 years ago when a NASA spacecraft designed to observe cosmic ...

The space rock that hit the moon at 61,000 kilometers an hour

Observers watching January's total eclipse of the Moon saw a rare event, a short-lived flash as a meteorite hit the lunar surface. Spanish astronomers now think the space rock collided with the Moon at 61,000 kilometres an ...

Indonesia flood death toll rises to 89, dozens missing

At least 89 people are known to have died after flash floods and landslides tore through Indonesia's Papua region, with the toll expected to rise further as rescuers hunt for dozens still missing, the national disaster agency ...

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