And health officials around the country are raising warnings about West Nile Virus. The U.S. is seeing the worst outbreak of the mosquito-borne illness since it was first detected in 1999. So far this year, 26 people have died, and about half of the country's 700 cases are in Texas - most of them in Dallas County. This week, for the first time in almost half a century, the county will begin aerial spraying to kill mosquitoes. B.J. Austin of member station KERA has the story.
It has been just over a week now since Curiosity, the NASA Mars rover, made its successful landing on the Red Planet. Curiosity is by far the most technologically advanced rover to reach the surface of Mars so far, and it's already begun sending back some pretty compelling, high-resolution photographs of the planet's surface. To talk about space and the importance of this mission, we're joined, as we often are, by Neil deGrasse Tyson, astrophysicist and director of the Hayden Planetarium in New York.