If you are interested in astronomy, you’ve probably heard that dark matter solves the problem of the “missing mass” to explain galactic light curves, and the motion of galaxies in clusters.

In Astronomy’s March 2010 issue, I shared insight into five of the biggest questions facing astronomy today. But that was just an arbitrary list, and there are plenty more cosmic conundrums ...

Where did the Big Bang take place? Is it now at the center of the universe? Frank Orienter | Rochester, New York The term ...

She asked her sixth grade students to send me questions they had about astronomy, and I answer them on camera. There were so many I had to split this into five parts! Here’s Part 1.

Astronomy's 10-year wish list: Big money, bigger telescopes and the biggest questions in science News By Chris Impey published April 5, 2022 ...

A live event with an expert live-blog commentary, NASA's new space telescope will tell us where we came from, how we got here, and even whether we're not alone!

"Nearly everyone is interested in astronomy at some level, whether it's just for the "pretty pictures" or because astronomy addresses "big questions," such as where did we come from and where are ...

What is a quasar? Answers were almost as numerous as the astronomers who turned up at the Montreal meeting of the American Association for the Advancement of Science. New theories about the nature ...