Ask Astro | Page 13 of 20 | Astronomy.com

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?

Are there 3-D renderings of the Small and Large Magellanic Clouds available to view?

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?

If tachyons exist, how might they be detected?

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.

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?

Why does the daily moonrise time vary by as much as 60 minutes, and as little as 30 minutes during the same month?

Astronomy for beginners

How were the constellation boundaries set?