Royal Institution on Instagram: "If interplanetary tourism ever becomes a thing, Venus definitely won't be a popular holiday destination. Carl Sagan described why the surface of the planet isn't somewhere you'd ever want to visit. Watch the full 1977 series with Carl Sagan at the 🔗 on our profile: @ri_science 🚀 For even more mind-blowing space facts, don't miss the 2025 Christmas Lectures, supported by @cgi_uk, 28, 29 and 30 December on BBC Four and iPlayer."

Mr Moist on Instagram: "This is awesome ⛄️ Built over ten days, this giant snowman wasn’t made by piling up snow, but carefully carved from one enormous block. Using more than 3,500 cubic meters of snow, the creators slowly shaped it into a smooth, rounded figure. In Harbin’s winter landscape, it’s less a simple snowman and more a temporary monument — showing how patience and craftsmanship can turn something fleeting into something unforgettable."