Earth.com

Earth.com

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Mississippi Delta lights up in a rainbow of colors from space: Three satellite passes reveal seasonal changes in vegetation, water, and wetlands across the Mississippi River Delta. #EarthDotCom #EarthSnap #Earth

Frozen ground shakes differently, and that could reveal ice buried on the Moon: Seismic waves cross icy ground far faster than dry soil, giving future Moon missions a way to map lunar ice before anyone digs. #EarthDotCom #EarthSnap #Earth

One black hole is stirring gas across 300,000 light-years: Black hole winds from one quasar churn hot gas across 300,000 light-years, carrying the energy of billions of exploding stars. #EarthDotCom #EarthSnap #Earth

Every cell has the same DNA, so what makes a heart cell different from a brain cell?: A new atlas pairs DNA methylation with 3D genome folding in 86,689 human cells and ties disease risk to specific cell types. #EarthDotCom #EarthSnap #Earth

Mouth bacteria could reveal early signs of gut cancers: A mouth rinse revealed signs of stomach and colon cancer in a new study, outperforming the standard stool test used for screening. #EarthDotCom #EarthSnap #Earth

Scientists recorded 420 human screams and discovered they can have six different meanings: Humans scream for a variety of reasons, and new research shows that only half of those reasons are due to some type of fear. #EarthDotCom #EarthSnap #Earth

Why is the ocean blue? No, it’s not because it reflects the sky: The ocean appears blue primarily because water molecules absorb longer wavelengths of sunlight far more effectively than short-wavelength blue light. #EarthDotCom #EarthSnap #Earth

Trees can cool down cities, but there’s an unexpected catch: Urban trees can cool cities during extreme heat, but new research shows that some vegetation can also complicate ozone pollution. #EarthDotCom #EarthSnap #Earth

Large mammals are secretly fertilizing tropical forests: Large mammals help shape forest floors by changing fallen plant material, soil acidity, and nutrient movement over time. #EarthDotCom #EarthSnap #Earth