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Light pillars over Whitefish Bay
When there are ice crystals in the air around you, you might see light pillars. They're the result of light reflecting from the crystals suspended in the air or clouds.
October 21, 2018
Europa may have towering ice spikes on its surface
Penitentes - large pointed spikes of ice - are known on Earth and Pluto. Jupiter's moon Europa might have them, too, according to new research. If they're there, they could make a future landing on Europa tricky.
October 20, 2018
Small asteroid passed closer than TV satellites
Newly-discovered Asteroid 2018 UA made an extremely close approach to Earth on Friday morning. Luckily, the space rock was too small to be dangerous.
October 20, 2018
Watch launch of BepiColombo mission to Mercury
The BepiColombo mission to our sun's innermost planet - fascinating little Mercury - launches from Europe’s spaceport in French Guiana on October 20 at 01:45 UTC (tonight at 9:45 p.m. EDT). Here's how to watch.
October 19, 2018
Report calls for NASA to ramp up search for alien biosignatures
NASA is again being encouraged to expand its search for alien life - not just intelligent life - all forms of life, including microbes.
October 18, 2018
What makes giant soldier ants?
Charles Darwin puzzled over why ants come in such wildly different sizes. The question even made him doubt his theory of evolution. New research might explain why.
October 18, 2018
How do dogs process words?
What's happening in your dog's brain when it hears you say squirrel? New research looks at how dog's brains react to human words.
October 18, 2018
Northern lights over Sweden
Photographer Jörgen Andersson captured the northern lights over Sweden on October 7, 2018.
October 18, 2018
Moon and Mars on October 17 and 18
Mars isn't as bright now as it was last July and August. But it's still pretty bright! Don't miss it near the moon on these evenings.
October 17, 2018
