Imagine walking into a bookstore, filling your arms with as many books as you can carry, and walking out without opening your wallet even once. BookGive in Denver makes this fantasy a reality, ...

Earth was mostly devoid of oxygen for much of its 4.5 billion year lifetime. That is, until certain processes started to ...

That would have enabled more of this organic carbon—and carbonate accumulating in shallow water around Columbia—to be ...

A planet that is about the size of Saturn, but with a temperature more like Earth's, has an atmosphere rich in methane, ...

Where could you be safe from these toxic winds? How would you breathe?

Earth’s surface is warming, but the upper atmosphere has been cooling for decades, and scientists now understand why.

Experience and research point to the need for teachers to strike a balance between direct instruction of facts and developing students' scientific curiosity as they pursue team projects.

Scientists studying a distant region of the solar system near Pluto have discovered the unexpected: a minuscule object with its own atmosphere. It was previously believed that such small celestial ...

A gradual dimming and brightening when a star passed behind it suggested the mini-Pluto was wrapped in a thin layer of air. By Kenneth Chang A small world about 300 miles wide and 3.5 billion miles ...

Japanese astronomers have discovered a thin atmosphere around a small celestial body beyond Neptune. This trans-Neptunian object is much smaller than what was previously thought possible to sustain an ...

The city of Los Angeles announced dates, venues and activities for its 10 World Cup watch parties, during which games will be projected on screens.

The amount of carbon dioxide detected in the atmosphere hit a record high in April. CO 2 levels averaged about 431 parts per million (ppm) over that month, according to data collected at the National ...