'Levitating' Moon Dust Explained in New NASA Study

In a recent laboratory study, researchers found that micron-size dust particles could "jump" several centimeters high under ultraviolet (UV) radiation or exposure to plasmas (electrically charged gas), said a statement from NASA. "On Earth's moon, these dust particles would have been lofted more than 4 inches (10 centimeters) above the lunar surface, leading researchers to conclude that the moon's 'horizon glow' — seen in images taken by Surveyor 5, 6 and 7 five decades ago — may hav