We're in beta! If you find a bug or have feedback, let us know in our 
Sheboygan Astronomical Society
19th Annual Swap-n-Sell
Aviation Heritage Center WI
- March 28, 2026 at 3:00 PM through 3:00 PM
CommunityAstronomy & Space
at home
within 25 miles
Mar 12, 2026
215 opportunities found! use fewer search filter criteria to find more opportunities
Filters
Citizens for Radioactive Radon Reduction (CR3)
2025-26 CR3 Radon Superheroes Calendar_ EDITION 7: ENGLISH, SPANISH & FRENCH
To help children and families learn about radon in a fun way!
Anywhere
- Ongoing
Citizen ScienceHealth & MedicineEducationCrowd Fundingenvironmentradonlibrarycenterlegislationradonrivalscr3healthhospitalssuperheroesschooltravel
Hackaday.io researcher (https://hackaday.io/project/18126-dav5-v301-raman-spectrometer)
3D-Printable Raman Spectrometer
an 85% 3D printable professional spectrometer
Anywhere
- Ongoing
Citizen SciencePhysicsComputers & TechnologyHealth & MedicineSocial ScienceChemistryEducationatmega 1284, spectrometer, 3d-printing, analytical-instrument, atmega 2560
ccd detector, raman-spectrometer, 3d-parts
Brookhaven National Laboratory's Science Learning Center
Accelerator Science (Virtual Exploration Lab, Grades 9-12)
Anywhere
- Ongoing
Live ScienceGeneral ScienceMathematicsOnline: Live Event
African Plains
From the trees to the ponds, you’ll find several species including some of our largest and most popular animals.
Philadelphia, Pennsylvania
- Ongoing
ExhibitionAnimalsEcology & Environment
HabitatMap
AirCasting
Crowdsource air quality data & clear the air!
Anywhere
- Ongoing
Citizen ScienceEducationEcology & EnvironmentComputers & Technologyandroidarduinoearth2025librarynoisecsm2025air-qualityheart rateair qualitypollutionair pollutionapp
Youth Services Department
Anderson County Library Children's Courtyard
Catalog wildlife in the library gardens.
Anderson, South Carolina
- Ongoing
Citizen ScienceEcology & Environmentlibrary
Brookhaven National Laboratory's Science Learning Center
Animal Tracking (Virtual Discovery Activity)
Anywhere
- Ongoing
Live ScienceEcology & EnvironmentOnline: Live Event
Año Nuevo Island - Animal Count
Census the pinnipeds and birds of Año Nuevo Island using drone imagery.
Anywhere
- Ongoing
Citizen ScienceOcean Water MarineAnimalsEcology & Environmentbirdswest coastoceanaerial censussealcountucucscmarine biologypinnipedsdrone imagerybirdcountpacific oceansea lioncensusmarineelephant sealscoastalaño nuevosanta cruzuc santa cruzuniversity of californiacaliforniaharbor sealssealdroneelephant sealecologyislandgullano nuevopelicancormorantmarine mammals
Arizona Science Center
Arizona Science Center: Dorrance DOME After Hours – Orbital
Arizona Science Center Arizona
- March 19, 2026 at 7:00 AM
CommunityGeneral Science