Questions, problems or feedback about Ephemeros? Send us a message — no account needed. We'll reply to the email address you give here. This is also where to apply for aerial photography access.
Aerial photography
Anyone can view aerial spots, but uploading to them is a vetted permission for professional operators — apply with this form, telling us who you are, what you plan to photograph, and your operating credentials. Read how aerial uploads work and how to apply →
Get it here to start contributing:
Stand where someone stood previously and take the same photo. Ephemeros lines the two up, and the time between them starts to move — a coastline retreating, a skyline rising, a garden filling in.
Whatever you pick, it's about 30 seconds a visit.
Open the map and you'll see spots — viewpoints other people have already photographed. Tap one and you're adding the next frame to a story someone else began. No setup: just show up and shoot.
The last photo floats over your camera as a see-through ghost, with live compass and tilt guides. Line up the skyline and you're within a degree of the original framing — we straighten the rest afterwards.
Every capture joins the spot's series and rebuilds its timelapse automatically. Come back in a season and the thing you photographed is visibly, undeniably different. That's the moment people get hooked.
Found a view worth tracking? One baseline photo starts a new spot. Group spots into a list — your street, your reserve, your project — and invite friends, a class, or a whole community to keep it fed.
Only create spots where you have lawful access; get the landowner's permission on private land.
Every aligned series joins an open dataset researchers use to study environmental and urban change. Because photos are taken in-app, each one carries real location, orientation and weather — that's what turns a nice photo into evidence.