Science Exploration

Look up and understand the natural world: sky-watching tools, science imagery archives, and public science outreach sites.

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Science Exploration

4 websites

NASA Astronomy Picture of the Day (APOD)Since June 1995, NASA's Astronomy Picture of the Day (APOD) has published a daily astronomy image with a professional astronomer's explanation. The archive is searchable back to day one, with an open API and a public submission channel.

Stellarium WebThe browser-based edition of the open-source Stellarium planetarium: nothing to install, just open a page to see a real-time sky for any time and place, with planets, constellations, deep-sky objects, and upcoming celestial events.

iNaturalistA nonprofit citizen science platform for biodiversity: photograph wild species to get computer vision suggestions and community identifications; research-grade observations flow into databases such as GBIF. Free, with mobile apps.

NASA Eyes on the Solar SystemA browser-based 3D solar system simulation from NASA's Jet Propulsion Laboratory: driven by real mission data, it replays 150+ NASA mission trajectories from 1950 to 2050, free with no account; sibling apps cover asteroids and exoplanets.