BAKU, Azerbaijan (AP) — Even as Earth sets new heat records, humanity this year is pumping 330 million tons (300 million ...

Even as Earth sets new heat records, humanity this year is pumping 330 million tons (300 million metric tons) more carbon dioxide into the air by burning fossil fuels than it did last year.

There's nothing innate about the Earth or its atmosphere that marks the boundaries of low Earth orbit. This is a distinction ...

A 2010 satellite image shows dozens of golden islands covered with strange parallel lines shining among the shallow waters of ...

A series of rocks hiding around Colorado's Rocky Mountains may hold clues to a frigid period in Earth's past when glaciers several miles thick covered the entire planet.

The "boring billion" shaped multicellularity, with energy demands sparking complexity. This era shows evolution's cost.