High heat, humidity, cold, rain, thunderstorms, or any sudden weather changes can make asthma worse, according to the Asthma ...

THEMIS provides images of the night sky every three seconds from sunset ... diffuse, discrete, cloudy, moon and clear/no aurora—making it easier to filter, sort and retrieve the valuable ...

NASA’s Chandra X-ray Observatory released 25 new images. Since Chandra’s launch on July 23, 1999 it discovers exotic new phenomena and examines old mysteries of our universe.

What views of the night sky would we have if we had evolved on ... If you can get away from the city lights and if it's not too cloudy, tonight you will be able to look up and see Venus, Mars ...