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.

Canadian astronomers have taken an extraordinary step in understanding how planets are born, using the James Webb Space ...

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

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

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

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 ...

An event called a "ring plane crossing" will occur between Saturn and Earth on March 23, 2025, when Saturn's rings will ...

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

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

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

Most of the information we have about planets beyond our solar system (exoplanets) comes from looking at dips in starlight as these planets pass in front of their host star. This technique can ...