Deep within Earth’s mantle lie two enormous, continent-sized structures known as LLVPs. Scientists once believed these ...

Humans have been leaving their mark upon Earth for almost as long as we’ve existed. But over the last 70 years — little more ...

Scientists found fossil-like traces in gypsum, suggesting ancient microbial life may have existed on Mars billions of years ...

Two different teams of scientists made Martian discoveries this week, revealing a little more about our mysterious planetary ...

In cities across the country Monday, pockets of shops and restaurants were closed and some children were held out of school amid “A Day Without Immigrants,’’ a social media-driven protest ...

After abundant rain and moderate snowfall this year in the northern half of the state, California’s largest reservoirs are ...

Would dropping every nuke or climate change make our home a barren, sterile world? Probably not, but we're trying ...

Tucson becomes a global stage for Earth’s most breathtaking treasures at the Tucson Gem and Mineral Show. But beyond the ...

Outside of a handful of valleys in Antarctica, the Atacama is the driest place on Earth. The inhospitable landscape of sand, ...

The solvents used in dry cleaning are made of fabric-safe chemicals. “When applied, they clean the surface of the garment by dissolving and lifting dirt, oils, and stains without soaking into ...

In the dry, arid Ethiopian ... occurring since 2005. A new ocean is being created in East Africa through changes in the tectonic plates -- huge segments of the Earth’s crust that move on top ...