Planets have to orbit a star, be big enough to form a sphere and keep other objects out of their path around their star.
Newly discovered network of planets could harbor water and life, scientists say
Scientists discover dozens of possible planets that could be cool enough for life, Science & Tech News
Alien megastar more hungry than mysterious, scientists say it ate a planet, Trending
Sizzling hot Venus-like planet GJ 1132b found by astrophysicists
Fundamental Questions: What is the catastrophic emergency? - MAHB
Planet X or Planet 9 may exist in the solar system - scientists say
15,000 scientists say threats to planet now 'far worse
Earth's twin beckons: Scientists say planet proves it's a 'Star
i see someone posting so i need to do it too : r/pokemonmemes
Humans Contribute to Earth's Wobble, Scientists Say
Alien life in Universe: Scientists say finding it is 'only a matter of time
Super-Earth' Discovered Among 60 New Planets That Could Support Life, Scientists Say
All 'planets' news