The runaway pulsar escaped the blast wave of the supernova that formed it, astronomers say, and is hurtling through space so fast it could travel from Earth to the moon in just 6 minutes. Read more and watch video.
Aspen trees - fondly called Quakies by some - have trembling, quivering leaves. Now those leaves have inspired an energy-harvesting mechanism that might rescue dust-laden rovers on Mars. Read more.
The weeks around an equinox are the best time to look for it. This year, Mike Lewinski in Tres Piedras, New Mexico, caught the zodiacal light after sunset as early as January! Read more.