Returns the Astronomy Picture of the Day: title, explanation, image or video URL, and copyright (if any). Can return a single day, a date range, or a random selection.
Use date (YYYY-MM-DD) for one day, start_date/end_date for a range, or count for N random entries (mutually exclusive with the date range). Set thumbs=true to get a thumbnail URL for video entries. Imagery is US public domain; some entries carry a third-party copyright noted in the response.
Single date, YYYY-MM-DD.
Return N random entries (do not combine with a date range).
Return a thumbnail URL for video entries.
Range end date, YYYY-MM-DD.
Range start date, YYYY-MM-DD.