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

Scientists believe that two asteroids might be fragments of long-lost "planetary embryos" from the early solar system.

The great planetary parade in February 2025 will see five bright planets in clear view and a special alignment of Mercury and ...

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

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

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 ...

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

Our Solar System is a carefully balanced celestial dance held together by a virtually perfect balance of gravity and inertia.

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 ...