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Here’s how often small asteroids enter Earth’s atmosphere!
Data indicate that small asteroids struck Earth's atmosphere - resulting in a bolide (a fireball, or bright meteor) - on 556 separate occasions in a 20-year period.
November 17, 2014
Looking for meteors? Try to get away from city lights
City lights drown all but the brightest stars, planets, and fireballs. But there's still some dark out there, as this satellite view of the U.S at night shows.
November 17, 2014
New clues to possible Venus auroras
For 40 years, astronomers have puzzled over signs of a green aurora on Venus, despite the planet's lack of a magnetic field.
November 15, 2014
Philae lander completes its main mission, then falls silent
The first-ever comet lander - Philae - made history this week by spending some 57 hours gathering data on the surface of Comet 67P/Churyumov–Gerasimenko.
November 15, 2014
Nevada earthquake swarm intensifies
Earthquake activity in northwest Nevada over the past week has been more than in previous months combined, says the Nevada Seismological Laboratory.
November 13, 2014
Visible storms on Uranus thrill astronomers
The normally bland face of Uranus has become increasingly stormy, with enormous cloud systems so bright astronomers can see details in the planet’s hazy blue-green atmosphere.
November 13, 2014
First gene network operated by brainwaves
Scientists hope a thought-controlled implant might one day help combat neurological diseases, such as chronic headaches, back pain, and epilepsy.
November 13, 2014
Rosetta mission places Philae lander on its comet
As of Thursday morning, November 13 - after initially failing to attach to the surface - Philae is now stable and is sending back pictures.
November 13, 2014
As Philae detached from its mothership, an eerie comet song
Listen in on a mysterious sound produced by Rosetta's comet. ESA says the comet song is due to "oscillations in the magnetic field in the comet's environment."
November 13, 2014
Comet-like tail discovered on long-known asteroid
Until about 10 years ago, it was pretty obvious what a comet was and what a comet wasn't. Now, that's changing ...
November 12, 2014
