Ebola is at least 16 million years old, says study

Ebola's first documented outbreak was in 1976. But the Ebola virus family has been around for 16 to 23 million years, says new research.

Spectacular explosion at launch for Antares rocket

Watch the NASATV live broadcast of the catastrophic launch failure. The rocket was bound for the International Space Station, loaded with supplies.

Exciting Rosetta space mission inspires a magical short film

A very good 7-minute film, called Ambition. It's not like any film about space exploration you've ever seen. The Rosetta comet mission lies at its heart.

Favorite scary weather scenes in horror movies

Are those loud rumbles of thunder - or pelts of hail hitting your roof and knocking on your windows - or a crazed psycho killer on the loose?

How often might Hawaii get a monster tsunami?

Scientists say that the tsunami that hit Japan in 2011 was a thousand-year event. A monster wave might strike Hawaii about as often.

First-ever image of 5th order rainbow!

The fabled quinary or 5th order rainbow is made by sunlight reflected five times inside raindrops. Now, for the first time, we have an image of one.

Comet Siding Spring’s near-miss of Mars was October 19

The close pass of Comet Siding Spring to Mars was exciting! Closest approach was October 19. Watch for photos from the event here at EarthSky.org.

This hummingbird video will melt your heart

Hummingbirds playing in a fountain. Toward the end, listen for the little clicks and chirps.

Largest-yet study describes near-death experiences

Tunnels ending in light, your life flashing before you, out-of-body sensations. Near-death experiences merit further study without prejudice, these researchers say.

MESSENGER spacecraft sees lunar eclipse from Mercury

The MESSENGER spacecraft, now orbiting Mercury, caught the images to make this movie of last Wednesday's lunar eclipse. See Earth and moon from Mercury!