Our solar system is a smashing success. A new study suggests that from its earliest period—even before the last of its ...

A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...

Thirty years ago, on a crisp October day in 1995, two Swiss astronomers changed the course of cosmic history. Michel Mayor ...

About 4. 6 billion years ago, the Solar System formed from a cloud of dust and gas collapsing in on itself due to gravity.

About 4.6 billion years ago, our corner of space was basically just a boring cloud of gas and dust floating […] ...

The NASA/ESA/CSA James Webb Space Telescope has provided the first direct measurements of the chemical and physical ...

Comets SWAN and Lemmon will both swing by Earth and appear bright in the sky near the end of October. Here’s how to see them.

The James Webb Space Telescope has, for the first time, measured the carbon-rich concoction that forms a moon-forming disk of ...

For millions of years, a frozen traveler drifted in silence through the stars, carrying secrets from another world. This ...

Anyone who studies planetary formation would relish the opportunity to get a close-up look at an interstellar object. Sending a mission to one would undoubtedly yield a scientific payoff. There's a ...

"It was just a matter of time before we found them." ...