A distant trans-Neptunian object, 2017 OF 201, has been identified at the solar system's edge, potentially qualifying as a dwarf planet with an estimated diameter of 700 km.

This process, called accretion, is how everything in the solar system – planets, moons, comets and asteroids – came into being. Telescopes can see young solar systems being born.

He was making a miniature model of the solar system out of Play-Doh when he had an epiphany. “The sun was 1-inch diameter, and from there the rest of the planets were microscopic.

The Great Solar System Adventure Saturdays at 2 p.m. beginning on May 10 Showman “The Great Schiaparelli” takes the audience on a space-time adventure within his Observatorium in this event.

The Birth of a New Planet in Our Solar System. Posted: April 24, 2025 | Last updated: April 29, 2025. ... My husband and I have 9 kids and $70,000 in student debt.

Mike Brown is convinced that beyond Neptune, at the far reaches of our solar system, there's an unseen giant planet. "This is the 5th largest planet in our solar system, lurking out there, waiting ...

Bullish (Video) Solar System Formation: Planets, Sun & Jupiter - Educational Astronomy Documentary. Posted: March 10, 2025 | Last updated: March 10, 2025 ...

Explore our solar system’s eight planets, from tiny Mercury to giant Jupiter, and discover the mysteries of dwarf planets and beyond in the Milky Way. Photo: Shutterstock . Listen Now.

For a very long time, Saturn was thought to be the only planet in our solar system with rings. The rings around Saturn were discovered by an astronomer called Galileo Galilei nearly 400 years ago ...

Our solar system used to have nine planets. Astronomer Mike Brown, also known as “the man who killed Pluto,” said he got hate mail from kids and obscene calls at 3 a.m. for years after his ...

Our solar system used to have nine planets. Astronomer Mike Brown, also known as “the man who killed Pluto,” said he got hate mail from kids and obscene calls at 3 a.m. for years after his ...