Science Magazine shows us how each human cell nucleus is packed with 2 meters of DNA wrapped around 46 chromosomes like a jumble of spaghetti. These “noodles” are in constant motion as they adjust to what the cell needs to do, and these adjustments bring certain genes into contact so they can work together. Now, researchers have visualized this dance at 20-minute intervals, so that they get a 4D rendering: They can see how this 3D structure changes over time.