Hannah Holmes,

In America, we’re told from the time we’re born that there’s no one else like us in the world, and that our unique personalities really and truly are one of a kind. But is this really true? And if so, how did our personalities get the way they are? Is there any way to change our personalities to make our lives easier?

Dust is everywhere: under our beds, on our computer screens, in cracks in the sidewalk, and on our skin. Particles from the Sahara can be found as far away as the Caribbean, and dust from melting glaciers can impact the Earth’s climate. On this week’s edition of ...