Magazine

Observing

Bright treasures in the constellation Leo

Science

Georges Seurat’s sky

Astrophotography, Observing

How to photograph the northern lights

Observing

Hunt the deep sky in the Hunting Dogs

Science

Artists always show a black hole’s accretion disk oriented in one plane. But stars near Sagittarius A* orbit in a variety of planes. If each of those stars is eventually digested, wouldn’t there be multiple accretion disks in multiple planes?

Science

The women immortalized on the Moon

Human Spaceflight

Rusty Schweickart remembers Apollo 9

Human Spaceflight

Jim McDivitt: 10 days in orbit

Science, Stars

Can neutron stars gain matter and mass?

Observing

Mars meets the Pleiades

Science

Xi Ursae Majoris: the binary that got away

Science, Stars

What determines how big a star is?