Our next-door planet is similar to Earth in size and composition, but extreme conditions made Venus a hellscape. Devoted researchers want to know what caused their wildly divergent paths.
Mid-sized exoplanets seem to only appear after shedding their atmospheres over billions of years.
The secret ingredient is meteorite powder.
Planetary systems are not supposed to form like this.
The gas giant orbits a pair of stars in a far-off system.
It orbits its mega-hot host star almost every three days.
The unique system could teach us about how planets are born.
The act could even reveal how to look for life on alien planets.
The discovery comes after two decades of watching one of our closest stars.
A new estimate suggests the Milky Way is home to six billion Earth-like planets. So far, we’ve found just one potential candidate.
Like science, tech, and DIY projects?
Sign up to receive Popular Science's emails and get the highlights.