Magazine | Page 168 of 278 | Astronomy.com

What causes the central bar in some spiral galaxies?

What lies beyond the planets

Working with Hydrogen-alpha data, part 1

Telescopes and Equipment

What is the benefit of a 2″ eyepiece compared to a 1¼” eyepiece?

The AAVSO turns 100

Pioneering astronomy at Lick Observatory

Have astronomers detected elements in the universe that aren’t found in our solar system?

When worlds align — twice

I see the term dust in many Astronomy articles. What is it, and where does it come from?

What is a blue straggler?

Telescopes and Equipment

A different type of filter

Putting names to the faces of history