Showing results for "Be Well" in Science

The Sahara is the largest hot desert in the world, equal in size to China or the United States. Yet, this arid expanse was once a verdant, pleasant land, fed by rivers and lakes. The Sahara sustained abundant plant and animal life, such as Nile perch, turtles, crocodiles, and hippos, and attracted prehistoric hunters and herders. What transformed this land of lakes into a sea of sands?

A two-year government study has found a small increase in two types of cancer in male rats exposed to the kind of radiation that cell phones emit. Given the ubiquity of cell-phone usage, the implications of the findings are substantial, if they are replicated in humans.

When NASA scientists announced that instruments on the Mars Reconnaissance Orbiter sensed signs of liquid water seeping on the Martian surface, they meant a solution salty enough to kill most living things on Earth.