Phew. It’s Friday. This week has felt longer than most and I desperately need a laugh. If you need one too, get ready to meet a Senegalese factory worker in Italy who has emerged as TikTok’s latest star jokester. As the planet heats up, read about the politics of carbon taxes and why what seems right might not be fair. And if you’re starting to plan travel, how about a unique mix of history and science? Check out some of the world’s oldest observatories. Don’t forget to participate in the week’s caption contest.