4000 Exoplanets

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

Explanation: The North America nebula on the sky can do what the North America continent on Earth cannot - form stars.

Specifically, in analogy to the Earth-confined continent, the bright part that appears as Central America and Mexico is actually a hot bed of gas, dust, and newly formed stars known as the Cygnus Wall.

The featured image shows the star forming wall lit and eroded by bright young stars, and partly hidden by the dark dust they have created.

The part of the North America nebula shown spans about 15 light years and lies about 1,500 light years away toward the constellation of the Swan.