The cosmos is filled with wonders yet to be discovered. One of the latest mysteries captivating scientists and space ...

There could be a ninth planet in our solar system ... which is a massive ring of asteroids, comets and dwarf planets that orbit the sun beyond it. In 2004, scientists found Sedna, a potential ...

Clyde Tombaugh discovered Pluto in 1930 at Lowell Observatory in Flagstaff. Here's how Pluto won - and lost - its planetary ...

The idea regarding the possible existence of a ninth planet ... ice and debris which is host to several dwarf planets. It was found that the orbit of some of the bodies in this distant region ...

"Lowell wanted to learn more about the planets and started coming under the belief that there might be a ninth planet out there,” Kevin Schindler, Lowell Observatory’s Public Information ...

Pluto, discovered in 1930, was once considered the ninth planet in our solar ... were necessary to be considered a planet: The body must orbit its host star, just as Earth and Jupiter orbit ...

“New Horizons shattered a major paradigm of planetary science,” says Alan Stern, the mission’s principal investigator. “Pluto turns out to have as much complexity as Mars or Earth, so much so that I ...

The reasoning was that it didn't satisfy one of three newly defined criteria to be a planet. They were: The body must orbit its host star, just as Earth and Jupiter orbit the sun. It is large ...

The planet Neptune wobbled in its orbit around the Sun. That could only mean one thing, astronomers said: There was a ninth planet out there, somewhere, lurking in the fringes of the solar system.

Scientists have detected a potential exoplanet using an unusual method — tracking shifts in another planet’s orbit. The hot Jupiter TOI-2818b was found to have an unexpected timing variation, hinting ...

Arizona in 1930 and was considered our ninth planet until 2006. The International Astronomical Union reclassified Pluto as a dwarf planet because it does not clear its orbit of other debris.

Pluto was hailed as the ninth planet in our solar system. For decades, it captivated imaginations with its icy surface and distant orbit beyond Neptune. But in 2006, Pluto’s planetary reign came ...