Magazine | Page 197 of 282 | Astronomy.com

Dark energy is consistently described as a property of space itself. Does this mean that, in the total absence of matter, the universe would still exist?

How do globular clusters form? Can such massive concentrations of stars arise from gas clouds alone, or is a central black hole required?

How to determine atmospheric extinction

Does Titan have the requirements to support life?

What is the smallest star in the universe, and where is it?

Is there a plan to retrieve the Hubble Space Telescope from space to preserve it in the Smithsonian Institution or elsewhere for future generations to appreciate?

Glenn Chaple’s Observing Basics: Study the Seven Sisters

Mars set for prime time

Stephen James O’Meara’s Secret Sky: The Christmas Cross: a matter of life and death

On the hunt for neutrinos

Deep-Sky Objects, Observing

More winter Milky Way treats

David H. Levy’s Evening Stars: Amateur outreach