Planet Fitness Inc. (NYSE:PLNT) Founder and CEO Mike Grondahl detailed a history of rampant abuse at the company and alleged it misrepresented its financials during a recent interview with ...

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 to ...

The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper’s authors have dubbed ...

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A team of scientists wants Pluto classified as a planet again — along with dozens of similar bodies in the solar system and any found around distant stars. The call goes against a controversial ...

The highest temperature ever recorded in Earth's history is 134 degrees Fahrenheit, or 56.7 degrees Celsius, recorded in Death Valley in 1913. This is, of course, an extreme temperature for Earth, but ...

When it comes to astrological events that stir up a lot of hype, buzz, conversation, and concern, planetary retrogrades are generally at the top of the list. After all, it's not exactly uncommon for ...

Earth is the only planet known to support life. Learn about what Earth is made of and where it came from. When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...

Strange things are happening at the outer edges of our solar system. An object up to ten times the mass of Earth is pulling others towards it. Is it a planet, or something else? Percival Lowell was a ...