Magazine

Human Spaceflight, Robotic Spaceflight

How do mission designers know at what angle to land on an astronomical body such as the Moon, Mars, or Earth?

Astrophotography

Understanding deconvolution

Deep-Sky Objects, Stars

Double star fever

Alien Life, Exoplanets, Planets

What if we detect life?

The Sun

Brewing up a solar storm

Observing Basics

10 great spring binocular sights

Astrophotography

More celestial images from a night sky photographer

Stars

How massive are globular clusters’ stars? They’re old, so they can’t be too big, right?

Observing

Close encounters

Exoplanets, Planets, Solar System

Effects of the eclipse

Science

More UFOs identified

Cosmology

Why cosmic expansion is speeding up