Solar-powered airplane embarks on a journey around the world, Elton John’s D&G boycott efforts take an intriguing turn, and more things you need to know.

1) This solar-powered airplane embarks on the world’s first sun-fuelled journey around the planet

2) This $2-million penny is up for auction. Any takers?

3) Vancouver is ranked North America’s best city to live in. But you already knew that

4) That was one short boycott. Looks like Elton loves his D&G too much to stick to his guns

5) A new breed of 3D printers could change the future of medicine