Science Previously understood that magnetic fields were directly related to rotation, so when I read that Mars, like Venus, didn’t have one, my understanding crumbled. What exactly causes magnetic fields in planets?
Exotic Objects Black holes inhale vast quantities of dust and gases. Does dark matter also get consumed?
Deep-Sky Objects The Pleiades star cluster (M45), open cluster M34, and the Little Dumbbell Nebula (M76)
Exoplanets, Planets, Solar System Would the thin atmosphere and absence of light pollution on Mars make for a fantastic night sky, or would martian dust/twilight spoil the view? Why don’t we have broad night-sky pictures?
Deep-Sky Objects Since the discovery of the “Pillars of Creation,” what changes have occurred within them and the surrounding area?
