There's something in the air: From sources such as wildfires, car emissions and, yes, even feces, tiny particles fly into our bodies with nearly every breath. That reminder comes courtesy of NASA ...

If you're curious about where clouds tend to hang out, check out this NASA image that shows the Earth's cloudiest and clearest spots. The map shows an average of all the Earth's clouds from July ...

NASA scientist explains how Earth can avoid a climate collapse 05:12. NASA has released the first data maps from a new instrument monitoring air pollution from space.

Clouds are so prevalent in the atmosphere that when NASA does manage to capture satellite images of Earth without clouds, it’s news. MODIS cloud observations from July 2002 to April 2015 show ...

NASA Reveals World Map of the Earth at Night More than just a pretty shot, the photo has real scientific use. By David Grossman Published: Apr 13, 2017 4:49 PM EDT ...

A Giant Leap in Earth Observation. This new satellite, named NISAR (short for NASA-ISRO Synthetic Aperture Radar), is expected to lift off from Satish Dhawan Space Centre near Chennai on June 18.

A NASA instrument designed to study dust has revealed that some of the largest methane clouds ever seen are floating over the US, Iran and elsewhere.

NASA’s newest space telescope rocketed toward orbit Tuesday to map the entire sky like never before — a sweeping look at hundreds of millions of galaxies.