MINNEAPOLIS (WCCO) — Here are the four stories you need to know about for Wednesday, July 22. They include a Minnesota-trained expert heading out into space, and the beginning of “the best days of summer.”

Mayor Hodges Goes To The Vatican

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Minneapolis Mayor Betsy Hodges was in Rome Wednesday morning for her second day of conferences at the Vatican. She was one of nine mayors from around the U.S. invited by Pope Francis for a summit on climate change and human sex trafficking. Hodges believes she was invited because of her advocacy on both of those issues. Wednesday’s agenda at the conference is focused on achieving sustainable development in cities.

Minnesota-Trained Doctor To Launch To Space Station

Minnesota-trained doctor Kjell Lindgren will launch from Kazakhstan. The 42-year-old surgeon and father of three will travel with two other Expedition 44/45 astronauts from Japan and Russia. They were supposed to launch in May but were delayed. They will join Scott Kelly, twin brother of retired astronaut Mark Kelly. Lindgren completed his medical residency in the emergency department of Hennepin County Medical Center.

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Prince Releases Music Video For ‘Baltimore’

The new music video from Prince explains the death of Freddie Gray in Baltimore police custody. It then moves to the media attention surrounding the case and peaceful demonstrations from Prince’s Rally for Peace event in May. Prince calls the song a tribute to all of the people of Baltimore. Earlier, he performed the song live in concert in the city.

‘The Best Days Of Summer’ Kick Off

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This year, Minneapolis Aquatennial activities will go four days instead of 10, and will be focused on downtown Minneapolis. Tonight is the Life Time Torchlight 5K along Hennepin Avenue; that starts at 7:30 p.m. After that, the CenterPoint Energy Torchlight Parade is at 8:30 p.m. with WCCO’s Mark Rosen as the grand marshal.