Good News: The solar system's most powerful phone charger and planet Earth's biggest animal crossing

Welcome to the Good News round-up, your weekly digest of what's going well in the world. We have five positive news stories for you:

Back in 2017, researchers at a Swedish university created a system that can capture and store solar energy for up to 18 years. The invention was a radical step, but a big challenge remained – turning this store of solar power into electricity.

Last month, the Swedish scientists of Chalmers University sent a sample of their captured sunshine to Shanghai, where researchers from Jiao Tong University managed to convert it.

"We've been working on developing molecular systems that can capture sunlight, store it, and release it as heat on the demand. The new thing is that we have developed a device that can transform this heat into electric power in a very local way," said Kasper Moth-Poulsen, professor at the Chalmers University of Technology.

The new generator is an ultra-thin chip that could be integrated into electronics such as headphones, smartwatches and telephones.

Prof. Moth-Poulsen said he was "really excited about this work," which could potentially replace batteries, giving us a new way to harness the sun’s energy and help the climate while keeping our essential electronics going.

Read more about this breakthrough here.

So you’ve won the lottery. You have €200 million in your pocket. What do you spend it on first? A yacht? Maybe a penthouse in Paris? Private island?

A man in France who found himself in this fortunate position decided on something a little different. He’s used his jackpot winnings – almost all 200 million of them – to set up an environmental foundation to protect forests and boost biodiversity.

The man, whose real identity remains a mystery and who has been using the pseudonym