On September 24, a late evening commercial flight from Singapore to Australia offered stratospheric views of the southern hemisphere's night sky.

If you saw a total solar eclipse, would you do a double-take?

To some, this nebula looks like the head of a fish.

What created this unusual mountain?

The greenish coma of comet 21P/Giacobini-Zinner stands out at the left of this telephoto skyscape spanning over 10 degrees toward the northern constellations Cassiopeia and Perseus.

Since the distance from Earth to Mars changes drastically as the planets orbit the Sun, Mars' appearance changes dramaticaly.

Does an alignment like this occur only once in a blue moon?

Every journey has first step and every catalog a first entry