The giant planets weren't always where we find them today. Jupiter, Saturn, Uranus and Neptune formed in a more compact ...

The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space ...

Approximately 4.5 billion years ago, a cold cloud of gas and dust buried deep in one of the Milky Way galaxy’s spiral arms started to collapse. From there, gravity worked its magic. The cloud began to ...

From an early age, we are taught to understand that the planets of our solar system change in position while orbiting a central star, the sun. But does the sun itself move within the solar system?

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. To us everything seems normal. Our planet, blue and bursting ...

New instruments are currently being developed that will supercharge our search for life across the Milky Way galaxy. When you purchase through links on our site, we may earn an affiliate commission.

Before the ribbon-cutting for the solar system walk on the Columbia Greenway Rail Trail on Nov. 29, created by WHS Astronomy ...

Oh, we humans do love a cleanly defined boundary, don’t we? They make things easier, after all. If we’re trying to categorize something, knowing what labeled bin to put it in is handy. If we’re ...