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 ...

a rare seven-planet alignment visible in the sky. But such events are not just a spectacle for stargazers – they can also have a real impact on our Solar System and offer the potential to gain ...

While the composition of gas and dust in a molecular cloud is fairly uniform, everything changes once a star begins to form.

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 ...

"A parade of planets, also sometimes referred to as a planetary alignment, is when several planets in our solar system appear to ... and allow others to see the “real” you.

All solar system planets have fairly circular orbits with ... "This was one of the real successes of Einstein's relativistic framework," said Bloomer. "It was one of the three big tests of general ...