If you have kids in school, or even if you don’t, you’ve probably realized that there’s a lot about the day-to-day of school ...

Scientists are intrigued after spotting a highly unusual celestial object lurking at the very edge of our solar system.

Astronomers have discovered a new dwarf planet, named 2017 OF201, far beyond Pluto's orbit. It takes 25,000 years to orbit ...

A team of astronomers believe they may have discovered a new dwarf planet—just like Pluto—on the edge of our solar system.

NASA astrophysics Dr Alex Young has recently spoken about whether the Sun will "ever burn out". In a video uploaded by the space agency, he said: "Well, the Sun, just like the stars we see at night, ...

So has his passionate defense of Pluto in the years since astronomy officials famously demoted it to a “dwarf planet,” giving it the bum’s rush out of the exclusive solar system club ...

This provides scientists with valuable data on how their formation compares to that of a star or brown dwarf ... these huge planets act like bowling balls cruising through our solar system ...

However, it is now considered a dwarf planet instead. The universe has billions of galaxies, and our solar system is in ... Stretch out the cotton balls and then add them to the mixture in the ...

It is the first possible Earth-like world discovered orbiting a white dwarf ... Sun’s other planets, especially Jupiter and Saturn, which can act as wrecking balls. “Our solar system is ...

A 2020 microlensing event was caused by a planetary system with an Earth-like planet and brown dwarf ... to leave behind a dense, glowing ball -- a white dwarf -- that is about half the mass ...

The definition was seen as a demotion of Pluto from the category of planet to the category of dwarf planet ... suddenly it became clear that the Solar System couldn’t keep having nine planets.

Public outcry in the wake of the decision included plenty of hand-wringing about how the solar system ... where Pluto is not a planet. So what do they know about the icy ball 4.6 billion miles ...