Transit of Mercury last four transits occurred on November 15, 1999; May 7, 2003; November 8, 2006; and May 9, 2016. The next will occur on November 11, 2019, and then on November 13, 2032. A typical transit lasts several hours. On June 3, 2014, the Mars rover "Curiosity" observed the planet Mercury transiting the Sun, marking the first time a planetary transit has been observed from a celestial body besides Earth. More generally, transits can also occur for Venus and were investigated in the context of searching for the hypothetical inner planet Vulcan. The most common observation to be made at a
Strange Days on Planet Earth Strange Days on Planet Earth Strange Days on Planet Earth is a four-part (1 hour each) television program on PBS concerning human impact on the environment. It is narrated by Edward Norton. The show was produced by Sea Studios Foundation. Strange Days on Planet Earth grew into an ongoing partnership with the National Geographic Society to bring focus on our personal connection to the planet’s life systems. The series were broadcast on PBS to over 12 million viewers in the U.S. and millions more in Europe, Latin America, Australia, and New Zealand. In 2007–2008, the Strange Days initiative focused on