Planets

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…

4 months ago

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…

4 months ago

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…

5 months ago

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,…

6 months ago

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…

6 months ago

There are Deposits of ice at Mercury's Poles too

Ice was discovered on Mercury's poles thanks to planetary radar.

7 months ago

Why are Neptune and Uranus Different Colors?

New research reveals why Uranus and Neptune are different shades of blue.

8 months ago

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…

8 months ago

Astronomy Jargon 101: Albedo

In this series we are exploring the weird and wonderful world of astronomy jargon! You’ll be dazzled by today's topic: albedo!…

10 months ago

TESS Finds a New Mars-Sized Planet (With the Density of Mercury)

Some planets orbit their stars so closely that they have extremely high surface temperatures and extremely rapid orbits. Most of…

10 months ago