According to a recent YouGov poll, 35% of Americans think Pluto is not a planet. But they are all wrong—kind of. To get to the bottom of whether Pluto is a planet, I tracked down planetary scientist ...

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

The mysterious planet Nibiru has fueled apocalyptic theories ... Albeit several of other celestial bodies such as Comet ISON and trans-Neptunian bodies (Eris and Sedna) have been wrongly associated ...

The discovery of the dwarf planet Sedna in late 2003 marked the first identified ETNO. After Sedna’s discovery, astronomers couldn’t help but wonder what was causing its peculiar orbit. Was it a ...

On any given night, it's likely that knowledgeable stargazers will be able to spot at least one bright planet shining in the night sky. Because they don't happen every year, such cosmic displays ...

“Every comic creator has their own personal white whale — that singular property they’ve been itching to make their mark on — and for more than a decade Captain Planet has been mine ...

A "super-Earth" planet found outside of our solar system could have conditions suitable for life, according to experts at the University of Oxford. Researchers said the planet has a mass six times ...

That means the Sun and the "Red Planet" are directly opposite from each other with Earth in the middle. According to NASA, this is around the time when the planet is closest to Earth, making it ...

The Planet Parade of 2025 is a truly extraordinary celestial event that has stargazers excited. From January 21 to mid-February, six planets will align in the sky: Venus, Mars, Jupiter ...

Read on to learn more about them. Venus, the Morning Star: Venus, the hottest planet in our solar system despite not being the closest to the sun, is so primarily due to its thick, carbon dioxide ...