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CHICAGO — NASA is revealing new details Wednesday about its first-ever mission to fly into the sun’s atmosphere.

The Solar Probe Plus will be the first spacecraft to fly directly into the sun’s atmosphere.

NASA says it will zoom within 4 miles of the sun’s surface and will hopefully answer decades old questions about the physics of how stars work.

The announcement came during a ceremony at the University of Chicago on Wednesday honoring astronomy and astrophysics professor Eugene Parker.

Viewers can watch a live stream on NASA’s website.