Magazine

Exotic Objects

How many black holes have astronomers discovered in our Milky Way Galaxy? How do they find a black hole?

Science

What is a parsec? Why do scientists use this unit instead of light-years?

Observing

Free preview: Stephen James O’Meara’s Secret Sky, “A volcanic sunset”

Observing

Jupiter’s moons meet

Observing

Glenn Chaple’s Observing Basics: Re-create a Galilean scope

Stars

What is a Wolf-Rayet star?

Science

With temperatures being so low in space, why don’t the gases condense into liquids or freeze as they do here on Earth?

Science

William Sheehan’s Galileo

Exoplanets

Astro Confidential web extra: Extending the conversations

Science

Bob Berman’s Strange Universe: Major mess-ups … maybe

Science

Astro Confidential web extra: Extending the conversations

Planets

Mercury meets the Pleiades