Backyard Worlds: Binaries

Backyard Worlds: Binaries turns old WISE telescope observations into a careful spot-the-motion task. The prize is not a flashy score but a plausible brown dwarf moving with a companion star, the kind of pairing that can give astronomers unusually useful clues about a dim object's age and mass.

What is Backyard Worlds: Binaries?

Each subject asks volunteers to compare false-color views of the same patch of sky and look for two points traveling in the same direction at roughly the same pace. That shared drift is the telltale clue. The catch is that real survey data is gloriously messy: detector ghosts, diffraction spikes, crowded star fields, variable stars, and slightly misaligned images can all impersonate a discovery. The project's research and FAQ pages supply the vocabulary and examples needed to separate cosmic company from camera clutter.

What you can do there

• Inspect WISE infrared flipbooks
• Compare the direction and speed of moving sources
• Flag possible brown dwarf companions

Why we picked it

The task has a satisfying scale shift: a tiny synchronized twitch in an image can nominate a system useful for studying the borderland between giant planets and stars. We also like that the site shows its working, explaining both the scientific payoff and the many ways an apparent pair can fool you.

How to get the most from it

Read the short tutorial and field guide before making calls, then compare both image panels instead of trusting color alone. Look for two sources that keep the same direction and speed. If a candidate survives that check, use the project's classification path and follow its separate review instructions rather than treating one click as confirmation.

Good to know

The project launched on June 16, 2026 and NASA says it can be joined from a laptop or phone. We did not execute the classifier or test account, touch, keyboard, accessibility, audio, or autosave behavior. The landing page also showed 65 percent complete beside zeroed live counters, so treat those totals as unreliable rather than a current census.

Who made it, and when?

NASA Zooniverse Projects is the credited creator or organization. The earliest supported launch date we found is June 16, 2026.