Yes. NASA provides free API keys at api.nasa.gov. The default rate limit is 1,000 requests per hour. For higher volume, you can request expanded access. There are no costs from NASA for using their open data APIs.

Photos are available based on Martian sol (day) numbers. Curiosity, the most active rover, uploads new images regularly. The agent can fetch the most recent sol's photos, which typically reflect images taken within the last few Earth days.

The NeoWs API searches by closest approach date range rather than by asteroid name. The agent retrieves all near-Earth objects for a given week and can filter results to find specific objects by their designation within those results.

EONET tracks wildfires, severe storms, volcanoes, earthquakes, floods, landslides, sea and lake ice, drought, and dust/haze events. Each event includes geographic coordinates, timestamps, source attributions, and magnitude data when available.

No. The agent queries NASA APIs in real time during each conversation. Image URLs, asteroid data, and event details are fetched live. Nothing is cached or stored separately by Tars. Each query returns the latest available data from NASA.

Yes. The CMR Collections and Granules endpoints accept bounding box, circle, and polygon spatial filters. The agent can search for earth science data over any coordinates you specify, returning matching satellite data collections and download links.

NASA's website requires users to navigate multiple portals and search interfaces. With Tars, your visitors ask questions in plain language and the agent retrieves the right data instantly from the appropriate NASA API. It eliminates the navigation burden entirely.

NASA data is generally in the public domain and available for commercial use. However, specific datasets may have usage restrictions. Check NASA's data use policies for your particular use case. The Tars integration does not add any additional licensing restrictions.