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

Does our Solar System have 9 planets or only 8? Astronomers have gone back and forth on that a lot, with Pluto now being classified as a dwarf planet. However, out beyond Neptune there could be ...

Beyond Neptune lies the Kuiper Belt, a vast expanse of icy bodies that may hold clues to the solar system’s formation. These ...

A star system has been discovered to be moving at an estimated 1.2 million miles per hour, making it possibly the fastest moving solar system in our galaxy.

Astronomers discovered the gas giant planet — dubbed a "hot Jupiter " — in 2016, but have continued to investigate this ...

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

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

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

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

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

This provides another piece of the puzzle to understand how planets and ... that could reshape our understanding of the Earth-Moon system and the broader solar system. The ...

The OSIRIS-REx mission returned to the sample to Earth in September of 2023, and these studies show that it contains amino ...