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

There are two types of terrestrial planets - solar terrestrial planets and extra-solar terrestrial planets. Solar terrestrial planets refer to the first four planets in the solar system, i.e, Mercury, ...

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 ...

Astrophysicists have long theorized that there should be planets out there that are, in size, somewhere between Earth and ...

A planet parade is when several of our solar system's planets are visible in the night sky at the same time. There will be six planets visible this time around, including Venus, Mars, Jupiter ...

Over the next several weeks, astronomers will be looking closely at an asteroid called 2024 YR4 that could be as big as a ...

People will be able to see a rare sight at the end of this month when all seven other planets in our solar system line up in the night sky. For the last few weeks six of the planets have been ...

Over the next several weeks, astronomers will be looking closely at an asteroid called 2024 YR4 that could be as big as a ...

July 11, 2024 — The International Astronomical Union defines a planet as a celestial body that orbits the sun, is massive enough that gravity has forced it into a ... June 25, 2024 — Solar ...