Environment

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**FILE** Donald Hassler, science program director at the Southwest Research Institute, is seen June 9, 2011, in his Boulder, Colo., office with a full-size replica of an instrument that will be placed on the NASA Mars rover Curiosity. The instrument will collect data about radiation on the Martian surface. (Associated Press/The Boulder Camera)

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Annabel Helms, 4, from the District, cools off in the water fountain at The Yards Park on Monday. The area is experiencing another surge of steamy weather. (Raymond Thompson/The Washington Times)

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Louisiana Gov. Bobby Jindal is expected to join Mitt Romney at a fundraiser in the state Monday, which is likely to increase speculation about him as a running mate. He’s seen as a conservative who’s strong on policy, with many accomplishments. (Associated Press)

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Will this year’s Republican vice presidential nominee be as buzzworthy as Sarah Palin was in 2008? Only time will tell.

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A pedestrian walks in the rain past the Tower Bridge displaying the Olympic rings on Saturday as London prepares for the 2012 Summer Olympics. The last few weeks and days are all about putting up signs, fitting in the remaining seats and completing the landscaping. (Associated Press)