The moon — it can appear full, shining like a beacon in the night or just a sliver of a nightlight. Still, it’s always there.

But what if we didn’t have a moon?

Here are the top five things we would miss without it.

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After nearly 66 years on the throne, Queen Elizabeth II is the longest reigning monarch in British history and has been a constant and calming force amidst the fast-paced changes their country has faced, making it even more inconceivable to think about what happens when she dies. Since Buckingham Palace doesn’t shy away from procedure, it’s no surprise there’s already a comprehensive plan in place for what happens after she passes, known as Operation London Bridge. On the day Queen Elizabeth II dies, her death will elicit a comprehensive plan that has been in place since the 1960s. What will happen when Her Majesty’s reign comes to an end and how will Britain mourn the loss? Here is what we know so far.

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We’ve all received an unwelcome holiday gift. In fact, around 70 billion dollars’ worth of presents are returned every year in the U.S. In this video, The Atlantic writer Derek Thompson explains why many presents amount to what economists call “deadweight loss”: the company wasted time making it, the giver wasted time buying it, and the receiver wasted time returning it. So, how do we design a gift-giving formula that strikes the right balance between efficient, practical, and sentimental?

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Should you buy an electric car? Concerns about range and a lack of charging points have held back sales. The FT’s global motor industry correspondent Peter Campbell drag races a Tesla against an Aston Martin, hits the city streets in a Nissan Leaf and checks out a new Jaguar I-pace.

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Smartphone sensors locate your phone in time and space. Working together, several sensors can paint a fairly complete picture of your daily activity, with implications for your privacy.

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