The Loop

Watch a tornado on the sun

NASA’s Solar Dynamics Observatory captured stunning images of a swirling plasma mass above the surface of the sun.MORE

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Could red wine help slow Alzheimer’s?

A new study suggests resveratrol, an antioxidant found in grapes, dark chocolate and red wine, could help slow the progression of Alzheimer’s. But Dr. Sanjay Gupta says it’s too early in the research to start taking resveratrolMORE

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Running & Remembrance

Karin Caifa looks at the story behind one race series honoring 9/11 heroes and others this weekend.MORE

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House votes against the Iran nuclear deal

The U.S. House of Representatives rejected the Iran nuclear deal. The Republicans’ message of disapproval comes one day after Democrats were able to block efforts to kill the deal.MORE

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Apple unveils upgraded devices

No new devices but Apple unveils several upgrades. CNN’s Maggie Lake talks to Gene Munster, Senior Research Analyst for Piper Jaffray.MORE

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