Solar System Is Jupiter’s moon Io gradually losing mass because of all the volcanic activity? And if so, what will be the moon’s final fate?
Exotic Objects Has a meteorite ever been found that is suspected to have come from a solar system other than our own? How would we recognize such a meteorite?
Science Gamma radiation from space has very high energy levels. What is the theoretical limit on the energies of gamma-ray photons? Is there a current technology to detect and measure the highest energy level?
Exotic Objects, Science Your October 2016 article on black holes describes a singularity with infinite density. It has been my understanding that anything with infinite density also has infinite mass and infinite gravitational attraction. Wouldn’t anything with infinite attraction collapse the universe?
Telescopes and Equipment I’ve been thinking about buying a solar telescope, but I already have a 5-inch reflector. Is it possible to convert it into a solar scope? If so, what do I need, and how do I go about setting it up in a safe way?
Cosmology What if there were two gravitational wave sources coming from different directions? Would there be an interference pattern?
Telescopes and Equipment I am struggling to find a system for telescopic observations of the planets and their major moons worthy of photographing. One wrinkle: I am in a wheelchair and almost blind.
Science Plenty of really hot things exist in the universe. But do we know of fire anywhere besides on our planet?
Robotic Spaceflight Why doesn’t NASA reuse space probe designs from successful missions like Cassini, New Horizons, and the Mars rovers? Using the same design and tweaking for landing on different planets or orbiting them would seemingly make the entire endeavor cheaper.
Deep-Sky Objects Since the discovery of the “Pillars of Creation,” what changes have occurred within them and the surrounding area?
