The Solar System | Astronomy.com

The planets in our solar system.

Science, Solar System

How long is a year on other planets?

Barchan dunes on Mars

How the shapes of martian sand dunes reveal the planet’s winds

Dinkinesh and its contact binary satellites seen just 6 minutes after Lucy came in closest contact with the asteroids. Credit: NASA/Goddard/SwRI/Johns Hopkins APL

Robotic Spaceflight, Solar System

Surprise! NASA’s Lucy mission uncovered an asteroid moon that is actually two in one

Dinkinesh up close - with its binary companion

Robotic Spaceflight, Solar System

NASA’s Lucy mission discovers surprise asteroid on ‘Dinky’ flyby

NASA shared this image of clouds and storms on Jupiter that resemble a face. Credit: NASA/JPL-Caltech/SwRI/MSSS Image processing by Vladimir Tarasov

Robotic Spaceflight, Solar System

NASA shares image of spooky ‘face’ on Jupiter

Venus, the star Regulus, the Moon, Mars, and Mercury seen over the Badlands in South Dakota on Sept. 18, 2017. Credit: Gregg Alliss.

Astronomy for beginners, Science, Solar System

What it means for planets to align

Mercury, the planet closest to the Sun.

Science, Solar System

Planets 101: What they are and how they form

This diagram outlines the basic stages of the aerocapture technique.

Robotic Spaceflight, Space Exploration

Aerocapture: Using a planet’s atmosphere to slow down a spacecraft

Artist concept of Cassini crashing into Saturn

Alien Life, Solar System

Why was Cassini crashed into Saturn to prevent contamination if Huygens intentionally landed on Titan?

Where is our solar system’s super-Earth?

The world of meteorite collecting: This Week in Astronomy with Dave Eicher

OSIRIS-REx sample canister on the ground

Robotic Spaceflight, Solar System

OSIRIS-REx successfully returns samples from asteroid Bennu