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Eleanor Imster
Image via NASA.

A new normal for Arctic sea ice?

“A decade ago, this year’s sea ice extent would have set a new record low …Now, we’re kind of used to these low levels of sea ice – it’s the new normal.”

Image via NASA

Watch spacewalk live August 19

Two ISS astronauts will perform a spacewalk on Friday. NASA TV’s live coverage starts at 6:30 a.m. EDT (10:30 UTC) and lasts about eight hours.

Screen Shot 2016-08-17 at 9.17.38 AM

Way-cute googly-eyed stubby squid

It’s purple! An underwater research team spotted this guy off the coast of California.

Image via Tom Wildoner

Dumbbell Nebula

Tom Wildoner got this great shot of the Dumbbell Nebula. Also known as Messier 27, it’s in the constellation Vulpecula, about 1,360 light-years away.

Imag via Marie Mongognia Burns

How sunflowers follow the sun

New research on how sunflowers use their internal circadian clocks to face east in the morning and follow the sun during the day.

Photo: Katerina Russo

A smile in the sky

Although it looks like an upside-down rainbow, it’s what’s called a circumzenithal arc. Katerina Russo captured this in Italy on August 9.

A plate of Enterobacter aerogenes showing the bulls-eye pattern of swarming underneath a stylized clock face. Image via Jiffin Paulose.

The circadian clock in your gut

Our internal circadian clock tells our body when to sleep, wake and eat. New research says that bacteria living in our gut also have their own circadian clocks.


Watch a comet plunge toward the sun

In early August, SOHO spacecraft saw this bright sungrazing comet, plunging toward the sun at nearly 1.3 million miles (2.09 million km) per hour.

July 30, 2016. Image via NASA

California wildfire from space

For 11 days, the Soberanes fire has been burning near the California coast between Monterey and Big Sur. Here are some satellite views.

Image via SKYGLOW

Gorgeous Dry Tortugas night skies

The National Park Service normally doesn’t allow night photography at the Dry Tortugas, but made an exception for this project.