Why TRAPPIST-1 Is Our Favorite Alien Planetary System
The TRAPPIST-1 system is a treasure trove of possibilities and questions. Observations by JWST have just begun.
To Find a New World, Watch How a Planet Dances with Its Star
Finding a tiny planet around bright stars dozens or hundreds of light-years from Earth is extremely difficult.
Could You Stand on the Surface of Jupiter? Exploring the Enigmatic Outer Planets
The outer planets’ clouds hide the weirdness within.
Could Venus’s Hell Climate Predict Earth’s Future?
The answer will require a probe that can withstand the planet's heat and atmospheric pressure to send back good data.
What’s in a (Planet) Name?
Planet names must be 16 letters or less, preferably one word, non-offensive, and not too similar to an existing one.
The Weirdest Dwarf Planets Discovered So Far
The solar system is apparently more crowded than we thought: astronomers have discovered a new dwarf planet. Some dwarf planets don't play by the rules.
Planet or Not, Pluto is Amazing
Pluto might not be a planet, but the results of the New Horizons mission flyby tell it is still a pretty cool place. And cold!
There May Be a Ninth Planet (And It’s Not Pluto)
Caltech astronomer Michael Brown has proposed the existence of a ninth planet, the existence of which would explain the strange orbits of six KBOs.