The ocean is blue because water absorbs colors in the red part of the light spectrum. Like a filter, this leaves behind colors in the blue part of the light spectrum for us to see. When sunlight hits ...

A large swath of Earth’s oceans changed color over the past 20 years — and human activity is suspected to have caused it, a new study reports. That deep blue color depicted so richly in postcards is ...

To track the changes in ocean color, scientists analyzed measurements of ocean color taken by the Moderate Resolution Imaging Spectroradiometer (MODIS) aboard the Aqua satellite, which has been ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Human-driven climate change is altering the world’s oceans, including their very ...

NASA's Earth Observatory captured striking new satellite imagery showing iceberg A-23A, once one of the largest icebergs ever ...