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Gallery: First auroras of 2014
This year has been great for auroras so far! Some of the best photos here.
January 9, 2014
Expect northern lights on January 9-10
2014 unleashed its first X-flare of 2014 on January 7. Space weather experts are calling for a good display of auroras.
January 9, 2014
View from space: Steam-fog over North America’s Great Lakes
On January 6, cold air passing over the warm waters of Lake Michigan created a phenomenon known as steam-fog. Here's a NASA satellite image.
January 9, 2014
Video: How sugar affects the brain
When you eat something loaded with sugar, your taste buds, your gut and your brain all take notice. What happens when you overload?
January 9, 2014
Waning crescent Venus
Venus will soon pass more or less between us and the sun, at what astronomers call inferior conjunction. That's why this inner planet is now waning in phase.
January 9, 2014
Get ready for a crash at the Milky Way’s core
A mysterious gas cloud with three times Earth's mass is spiraling toward the supermassive black hole at the core of our Milky Way galaxy. Expect to hear about the encounter in the coming months.
January 8, 2014
Smallest, faintest, most numerous galaxies seen yet in distant universe
Normally these remote galaxies would be too faint to see, even with the Hubble Space Telescope. Astronomers used a bizarre trick of nature to photograph them.
January 8, 2014
Winter sun returns to Earth’s far north
The solstice is behind us. At high northern latitudes, sunlight is returning only briefly each day or casts an eerie twilight glow.
January 8, 2014
Top ways to search the Internet for time travelers
Key strategy involves Internet searches for a mention of something before it actually happened.
January 7, 2014
First gamma-ray study of a gravitational lens
The work could provide insights into the workings of black-hole jets and help us understand the rate of the expansion of the universe.
January 7, 2014
