Magazine

Science

Can Mars transit the Sun? Are there any other transits besides Mercury, Venus, and Earth?

Human Spaceflight, Space Exploration

One small step

Exotic Objects, Stars

What will happen on Earth when Betelgeuse goes supernova?

Science

In the Northern Hemisphere, the summer solstice happens on or around June 21. Yet the summer is usually hottest the first week of August. The opposite is true for the winter solstice. Why the delay?

Exoplanets, Observing, Planets, Solar System

The ringed planet at its peak

Human Spaceflight, The Moon

Target Apollo landing sites

The Moon

One giant leap for mankind

Human Spaceflight

The first astrogeologists

Exoplanets, Observing, Planets, Solar System

Jupiter dazzles all night

Observing

Tree through a window

Human Spaceflight, The Moon

A telescopic trip to the Moon

Human Spaceflight

Building Apollo