Scientists believe that two asteroids might be fragments of long-lost "planetary embryos" from the early solar system. These embryos, somewhere between small planetesimals and fully formed planets ...

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

Jan. 15, 2025 — New observational data and simulation models have confirmed a new type of planet unlike anything found in the Solar System. This provides another piece of the puzzle to ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit before shoving four of the solar system's planets onto a different course.

"We were very surprised to see that the same tiny plasma jets appear to be driving both the fast and the slow solar wind ... Max Planck Institute for Solar System Research in Germany previously ...

A network of interconnected "tunnels" links our solar system to distant galaxies ... It highlights the dynamic nature of the universe and its evolution. Researchers aim to explore these tunnels ...

All of our solar system’s planets are lining up to parade through the night sky at once. This extraordinary celestial event will see the sky scattered with seven visible planets in what is known ...

While not a detection of life itself, this study shows that the Solar System ... understand the early universe and the chances of life hiding elsewhere in the Solar System (and beyond).

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit before shoving four of the solar system's planets onto a different course.

Planets in our solar system orbit the Sun in different orbits in three-dimensional space. Scientists have claimed that an interstellar visitor, much larger than any celestial body in our solar ...

This may explain the strange properties of the orbits of our solar system's planets, which are not quite perfectly circular, and all lie on slightly different planes. NASA artist’s conception of ...

While mapping the nearby universe, astronomers discovered the largest-known structure in the universe, about 425 million to ...