The Blue Horsehead Nebula looks quite different in infrared light.

Did you see it? One of the more common questions during a meteor shower occurs because the time it takes for a meteor to flash is typically less than the time it takes for a head to turn.

Have you seen the Moon lately? On April 18, its waxing sunlit crescent moved through planet Earth's night across a background of stars in the Hyades.

What planet is this? It is the only planet currently known to have trees.

Except for the rings of Saturn, the Ring Nebula (M57) is probably the most famous celestial band.

What would it look like to fly over the North Pole of Jupiter?

Wandering through the constellation Sagittarius, bright planets Mars and Saturn appeared together in early morning skies over the last weeks.

What's that in the sky? An aurora.

One of the most spectacular solar sights is an explosive flare

About 70 million light-years distant, gorgeous spiral galaxy NGC 289 is larger than our own Milky Way