Magazine | Page 189 of 278 | Astronomy.com

Bob Berman’s Strange Universe: It wasn’t there

Stephen James O’Meara’s Secret Sky: Measure the Moon

David H. Levy’s Evening Stars: Old Hickory and old friends

Do Io’s volcanic eruptions create the electromagnetic torus between the moon and Jupiter? Could Io deorbit into Jupiter in the next several million years because of energy lost in these interactions?

Watch a pulsar’s plasma erupt

Glenn Chaple’s Observing Basics: Sketching 101

Do stars experience the same phenomena as our Sun, such as sunspots, prominences, solar wind, and flares?

The multiverse: Why do other universes not collide with ours?

Could our solar system’s habitable zone hold two earthlike planets?

Ask Astro web extra: Why is the fourth known planet in an extrasolar system labeled with an “e”? Shouldn’t that be the fifth known planet? Or is the star always “a”?

Saturn’s rings reappear

Astro Confidential: Our turn: Jim Kaler