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Crane Glacier lost the protective floating ice shelf at its lower edge in 2002. Since then, the glacier has more than tripled its original speed. As the glacier sped up, it also splayed out. This caused its ice to thin in some places by 100 meters (325 feet).
Erin Pettit/Oregon State University
Melt ponds form on Arctic sea ice during the summer. Their being dark increases how much of the sun’s heat they will absorb (not reflect), speeding the rate at which they melt.
Kathryn Hansen/NASA
Warm summers are melting large amounts of snow on the Devon Ice Cap, in the Canadian Arctic. As this melt water gathers into rivers, it carves deep channels in the ice, like the one shown here.
A. Gardner/NASA/JPL-Caltech
ICESat-2’s bright green lasers can monitor Earth’s glaciers and ice sheets by detecting changes in their heights.
NASA
Rising seas eroded the coastline of this resort region in Hoi An, Vietnam, causing its buildings to crack apart and start tumbling into the water. Climate change is threatening low-lying regions across the globe with similar destruction.
xuanhuongho/iStockphoto
Twenty-one young people — including Levi Draheim, 11, from Satellite Beach, Fla. — have sued the U.S. government for actions that they say contributed to climate change.
Robin Loznak/Our Children’s Trust
ma-no/iStockphoto
Plants behind the doors of this greenhouse are breaking down harmful chemicals that pollute indoor air.
Mark Stone/University of Washington
Would you eat one of these for science? Six doctors did.
Ekaterina79/iStockphoto
If school starts later in the morning, teenagers are more ready to learn. In a new study, students wore wrist activity trackers that pinpointed when they fell asleep and woke up. The results confirmed the benefit of later start times.
monkeybusinessimages/iStockphoto
The scent of earth after a rainstorm smells like nothing else. But what is it?
tuk69tuk/iStockphoto
In this community, the bald eagle is a predator and the fish is its prey.
BrianEKushner/iStockphoto
Cubic zirconia looks like diamond from afar. But instead of being made of carbon, these rocks are a combination of the elements zirconium and oxygen.
Kristin Cacciavillani/iStockphoto
We’ve all been told to cover our noses when we sneeze. But how well does it stop snot spread?
AnneMS/iStockphoto
What makes a teen step in when they see bullying? Scientists asked almost 900 kids to find out.
omgimages/iStockphoto
Helping low-income biology students manage test anxiety improves scores, a new study finds. Such test-prep tips might help these students stay on the high school science track.
seb_ra/iStockphoto
We inherit genes from our parents. Genes are like a recipe that’s passed along from one generation to the next. But the number of genes doesn’t explain why we are more complex than simple animals or bacteria.
digitalskillet/iStockphoto
This New Horizons spacecraft took this image at a distance of about 28,000 kilometers (17,400 miles). It shows the space rock’s unique shape.
SWRI/JHU-APL/NASA
China’s Chang’e-4 lunar probe gives a rare glimpse of the farside of the moon.
Xinhua/Xinhua via Getty Images
During a "total" lunar eclipse, the moon will remain partially visible in the sky but take on a dark red hue.
Bernd Thaller/Flickr (CC BY 2.0)
A new kind of glass can keep itself clean underwater. The key is microscopic pancake-shaped structures that let liquid flow between them.
ES3N/iStockphoto
Researchers 3-D print a green spiral of cyanobacteria onto a mushroom. The microbes give off electrons when exposed to light. Those electrons flow into the black graphene ink to produce an electric current.
American Chemical Society
A new bandage uses electrical pulses to help wounds heal faster. It’s powered by the patient’s natural body motions.
Sam Million-Weaver/Univ. of Wisconsin–Madison
A special pen heats the blue ink on this rewritable paper. As the ink warms, it turns clear. The white paper beneath reveals a written message.
Luzhuo Chen
Hummingbirds fight over a feeder. The shapes of some male bills appear to have evolved to equip them for such combat.
CarolinaBirdman/iStockphoto
Researchers built a robot called OroBOT to re-create the way that Orobates pabsti might have walked. That four-legged creature lived some 290 million years ago.
Tomislav Horvat and K. Melo/EPFL Lausanne