Icy Surprise from a Dying Star: JWST Finds CO2 Crystals
In a blazing foundry, any ice cube would vanish instantly. But tucked inside a thick mitten, it survives. Nature pulled a similar trick in the planetary nebula NGC 6302.
Invisible Rearrangement: How Twisted Crystals Find a New Order
A deck of cards in which each card is slightly rotated cannot lie flat: the backs and faces will never align. But if the cards are flexible, they will start to adjust, shifting by fractions of a millimeter to find the perfect match. Something similar happens inside crystals when two thick layers of MoS2 or MoS2 with WS2 are stacked with a twist of 1–2 degrees.