The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

New findings offer clues about the ancient origins of asteroids and their potential role in the formation of terrestrial ...

The formation of our solar system from a singular nebula raises an intriguing question: why did each planet develop with a ...

Baker said that there are other astronomical events that may be more interesting than the parade of planets. Baker said Mars ...

February will be an awe-inspiring month for astronomy enthusiasts who will be able to the see the solar system's planets ...

Mercury takes only 88 Earth days to orbit the sun.

New research shows that star activity can distort exoplanet measurements, affecting size, temperature, and atmosphere ...

THE search for alien life across our Solar System and beyond has so far kicked up nothing intelligent – let alone microbial.

Starting up again Saturday, a sweeping view of our solar system will glow in the night sky. The planetary alignment, or a ...

Temperamental' stars that brighten and dim over a matter of hours or days may be distorting our view of thousands of distant ...

To better understand why the planets have variable compositions ... to the formation of the gas and ice giants in the outer solar system. This first-order model of planetary growth in the solar ...

Ever since Isaac Newton famously talked about gravity, its dominance as a force in our solar system has been well known. It's ...