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Best photos of Venus and Mercury after sunset

Venus and Mercury were closer earlier this month, but they’re easier to see now. Don’t miss these 2 innermost worlds in our solar system, in the west after sunset.

Send your name to the sun

NASA’s Parker Solar Probe, launching this summer, will travel closer to the sun than any spacecraft yet – and you can send your name along for the ride. Hear about it from William Shatner.

Wildfires will likely get worse in western North America

A new study projects increases in burning across the U.S. West and Canada. It suggests large fires – such those we’ve seen recently in California – may become more common.

Almost-real-time map of global fishing

“Until now we didn’t really know where people were fishing in vast swaths of the ocean …”

What the flu does to your body

What’s going on inside your body that brings such pain and malaise? An immunologist explains why the flu makes you feel so awful.

This asteroid will pass closer than the moon on Friday

And you can watch the passage of near-Earth asteroid 2018 DV1, live, on March 2.

How naked mole rats stay cancer-free

Another piece in the puzzle of how these wrinkled, hairless, buck-toothed creatures live such long and cancer-free lives.

When is the next leap year?

If there were no leap years, eventually February would be a summer month for the Northern Hemisphere. 2018 isn’t a leap year, but 2020 will be.

How many stars can you see?

It takes up to 30 minutes for your eyes to adapt to the dark. And a country location is best. Then, on a clear night with no moon … how many stars?

See it! Friday night’s moon and star

People around the world last night caught the moon near the bright star Aldebaran in the constellation Taurus the Bull.