How can readers help Overlap Zoo reveal cosmic dust?

NASA’s page title asks readers to “Help Overlap Zoo Reveal Cosmic Dust,” which points to a participation opportunity. The provided context, however, does not include the actual sign-up steps or task instructions.
What readers can do from the confirmed information
The safest practical answer is to go to NASA’s Overlap Zoo page and follow the instructions there. The context confirms only that NASA published a page with that title and that it is connected to revealing cosmic dust.
The visible text also describes galaxies as large systems containing billions of stars, gas, and dust, held together by gravity.
What is not confirmed here
The provided excerpt does not say:
- Whether readers need an account
- What images or data they will review
- How classifications are submitted
- Whether there is a deadline or eligibility requirement
Because those details are not in the context, readers should rely on the NASA page itself for the current participation steps.
What should participants look for when helping reveal cosmic dust in galaxies?

The provided NASA context gives the broad science setting for Overlap Zoo: galaxies contain stars, gas, and dust. It does not give detailed participant instructions.
What the context says to focus on
The confirmed subject is cosmic dust in galaxies. NASA’s visible text describes galaxies as enormous systems that include:
- Billions of stars
- Gas
- Dust
- Gravity holding the system together
That means participants should treat the NASA page as the guide for exactly what to identify or classify. The excerpt provided here does not say what visual markers to use.
What participants should not assume
The context does not specify whether users should look for overlapping galaxies, dust lanes, color changes, or any other particular feature. Those may or may not be part of the full NASA task, but they are not confirmed in the supplied material.
For the actual instructions, use the current NASA page before starting.
Sources / Learn more
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