Our Sun's beginnings are a mystery. It burst into being 4.6 billion years ago, about 50 million years before the Earth formed. Since the Sun is older than the Earth, it's hard to find physical objects ...

Imagine peering into a microscope and finding yourself in a garden. That's the case at Harvard School of Engineering and Applied Sciences, where researchers have found a way to shape microscopic ...

Blue sharks possess a secret hidden in their skin: a sophisticated arrangement of microscopic crystals and pigments that create their brilliant blue appearance — and may allow them to change color.