X-ray-optics technology has progressed such that future astrophysics X-ray observatories will have orders-of magnitude better performance than existing observatories such as NASA’s Chandra X-ray Observatory.
When life and livelihood depend upon the rain, the whim of weather creates a precarious relationship between farmer and Mother Nature.
With Jim Green today is the “man about Mars,” Bruce Jakosky from the University of Colorado. Bruce is the principal investigator of NASA's MAVEN mission. Joining them is Michael Meyer the lead Mars scientist at NASA Headquarters.
Ozone is a highly reactive gas that can be broadly divided into two categories—“good” and “bad.” Good ozone is found in the stratosphere and shields the Earth from harmful levels of ultraviolet radiation; bad ozone is created near the ground level from various natural and human sources, and can have detrimental effects on human health and the environment.
Cameras on NASA spacecraft have treated us to intriguing and inspiring perspectives of our home planet as they've looked back at Earth from various locales.