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A smoke-fuelled daytime blackout in Sao Paulo prompts calls for more action against forest fires.
Thirty years ago a "European unity" picnic became an East German exodus from communism.
Judy Murray has criticised the US Open after it tweeted details of semi-finals prize tickets.
On the 50th anniversary of the seminal Woodstock music festival, we speak to people who were at the "Aquarian explosion".
A man whose wife was killed in the El Paso shooting has invited locals to attend her funeral.
Brad Ryan and his grandma Joy are on an unforgettable road trip to visit every US national park.
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