FROM Sean Solomon
Messenger Spacecraft Sends Back Pictures of Mercury For a week now, excited astronomers have been looking at close-up images of Mercury, where temperatures range from 800° to -300°. Is it possible that the planet closest to the Sun has deposits of frozen water? In 2004, we talked with Dr. Dean Soloman as the Mercury Messenger spacecraft took off for a long complex voyage to the planet nearest the Sun. He is the principle investigator for the Mercury Mission and Director of the Department of Terrestrial Magnetism at the Carnegie Institution for Science .
Venezuela spirals into economic and political chaos Venezuela, a country whose potential for prosperity is unmatched, finds itself on the verge of civil war. What sustains the repressive government? With time running out, guest host León Krauze looks at what the international community can do to pull the country from the edge of collapse.