This blog has frequently lamented the demotion of Pluto. After being expelled from the company of planets, it now resides in the newly-named Plutoids, in the company of Eris, Sedna and other dwarf planets. Another one-time planet suffered a worse, and lonelier, fate one hundred years ago.
Astronomers discover the largest known solar system, consisting of a large planet that takes a million years to orbit its star.
Planet would orbit the sun once every 15,000 years
Scientists think they’ve solved the mystery of what causes those weird bright spots on the dwarf planet Ceres — and you may have a jar of it in your bathroom at home.
Witnessing an aurora first-hand is a truly awe-inspiring experience no matter what planet you may be on.
New observations of Pluto’s moons reveal a system in pandemonium, according to scientists with the New Horizons mission.