Magazine

Science

If photons have no mass, how can gravity bend light?

Observing, Science

What’s the best way to observe a meteor shower?

Observing Basics, Stars

Would astronauts on the Moon observe Earth occulting background stars?

Observing

Stephen James O’Meara’s secret sky: Vanishing acts, part 2

Observing

Glenn Chaple’s observing basics: The king’s astronomer

Science

Bob Berman’s strange universe: Staring contest

Science

What is a planemo?

Science

Bob Berman’s strange universe: Marinating the news

Science

How are comets named?

Science

Does a black hole stay a black hole for life?

Observing

Stephen James O’Meara’s secret sky: Vanishing acts, part 1

Observing

Glenn Chaple’s observing basics: Signposts of the sky