2021 May 1

The center of our Milky Way galaxy can be found some 26,000 light-years away toward the constellation Sagittarius.

An old Moon rose this morning, its waning sunlit crescent shining just above the eastern horizon before sunrise.

Delicate in appearance, these filaments of shocked, glowing gas, are draped across planet Earth's sky toward the constellation of Cygnus.

These cosmic dust clouds drift some 1,300 light-years away along the fertile starfields of the constellation Cepheus.

How far can you see?

It is the most massive of the Milky Way's satellite galaxies.

Globular star cluster Omega Centauri, also known as NGC 5139, is some 15,000 light-years away.

By the turn of the 20th century advances in photography contributed an important tool for astronomers.