Red, white and blue from the International Space Station to you! Astronauts aboard the space station captured this photo of Earth's atmospheric layers on July 31, 2011, revealing the troposphere (orange-red), stratosphere and above. Satellite instruments allow scientists to better understand the chemistry and dynamics occurring within and between these layers. Image Credit: NASA/JSC Gateway to Astronaut Photography of Earth #independenceday #4thofjuly #july4th #iss #nasa #space #science #fourthofjuly #4thofjuly2014