Planets
A Rogue Earth and Neptune Might Have Been Found in Older Data
Scientists have found what appear to be rogue planets hidden in old survey data. Their results are starting to define…
A White Dwarf is Surrounded by Torn-up Pieces of its Inner Planets and its Kuiper Belt
What will happen to our Sun? In several billion years, it'll cease fusion, shrivel into a white dwarf, and emanate…
Compare Sand Dunes Across the Solar System, From Venus to Pluto
A new study explains how bodies as different as Venus, Earth, Mars, Pluto, Titan, and Triton can all have sand…
Civilizations Don’t Even Need Space Ships to Migrate From Star System to Star System
In about 5 billion years, the Sun will leave the main sequence and become a red giant. It'll expand and…
The Younger the Planet, the More Likely it is to be Habitable
We've discovered thousands of exoplanets and are likely to find many thousands more of them. While the wide variety of…
Marsquakes are Caused by Shifting Magma
Before the InSight Lander arrived on Mars, scientists could only estimate what the planet's internal structure might be. Its size,…
Astronomers See the Wreckage Where Planets Crashed Into Each Other in a Distant Star System
Our Solar System was born in chaos. Collisions shaped and built the Earth and the other planets, and even delivered…
There are Deposits of ice at Mercury's Poles too
Ice was discovered on Mercury's poles thanks to planetary radar.
Why are Neptune and Uranus Different Colors?
New research reveals why Uranus and Neptune are different shades of blue.
Massive Rocky Planets Probably Don’t Have big Moons
The Moon has orbited Earth since the Solar System's early days. Anyone who's ever spent time at the ocean can't…