Voyager missions: encounters and discoveries

What you’ll explore in this quiz

Voyager 1 and 2 transformed our view of the outer Solar System—this quiz focuses on encounter sequences, headline discoveries, and the science behind the images.

Every question uses 4 options and there’s no timer, so you can think through mission timelines, targets, and terminology at your own pace.

Skills you’ll practice

You’ll sharpen your recall of which spacecraft visited what, in what order, and what each flyby revealed about planets, moons, rings, and magnetospheres.

Common pitfalls to avoid

Many misses come from mixing up Voyager 1 vs. Voyager 2 encounter paths, confusing moon names across planets, or misplacing discoveries (like ring features) to the wrong system.

Difficulty and how to set up your run

Difficulty is mixed by design: you’ll see a balance of straightforward milestone questions and deeper details about instruments, data, and lesser-known findings. Before you start, choose the question count and select an easier or harder difficulty to match whether you want a quick refresher or a full-length challenge.

• Distinguish Voyager 1 and 2 trajectories and encounter order
• Match discoveries to the correct planet or moon (Jupiter, Saturn, Uranus, Neptune)
• Identify instruments and what they measured (imaging, fields, particles)
• Spot timeline traps: launch years, flyby dates, and mission phases
• Practice interpreting mission terms like flyby, occultation, and magnetosphere