How big can a planet be? With very large gas giants, it can be hard to tell

Gas giants are large planets mostly composed of helium and/or hydrogen. Although these planets have dense cores, they don't ...
E! Online

Here’s How to See the Rare 6-Planet Parade Happening in February

Jupiter, Mercury, Neptune, Saturn, Uranus, and Venus—will appear in the sky together in a special planet parade on Feb. 28.

Why only a small number of planets are suitable for life

For life to develop on a planet, certain chemical elements are needed in sufficient quantities. Phosphorus and nitrogen are ...
Smithsonian Magazine

Scientists Say That Jupiter—the Solar System’s Largest Planet—Might Be Slightly Smaller Than Previously Thought

Updated measurements from NASA’s Juno spacecraft could help researchers better understand the planet's mysterious interior, ...
Space on MSN

Life on Earth is lucky: A rare chemical fluke may have made our planet habitable

Life on Earth may exist thanks to an incredible stroke of luck — a chemical sweet spot that most planets miss during their formation but ours managed to hit.
Forbes

Six-Planet ‘Parade’ On Monday Is A Last Chance To See Mercury

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. There’ s six-planet parade on Monday, Aug. 25, just before ...

Astronomers Discover an Earth-Like Planet With a Dangerous Temperature Problem

A newly identified Earth-sized exoplanet with a year-long orbit may lie near its star’s habitable zone, but extreme cold could limit its chances of hosting liquid water.
Morning Overview on MSN

Bizarre chaos erupts on Jupiter as scientists say it’s no longer acting like a normal planet

Jupiter, long treated as the solar system’s fixed point of planetary normalcy, has just been knocked off that pedestal. New measurements from NASA’s Juno spacecraft show the gas giant is slightly ...