The giant object was snapped over the state of Michoacán and could reportedly be seen for miles around.

According to local reports, residents across three municipalities observed the bizarre swirling object for more than an hour on Saturday.

Numerous so-called “truth-seekers” have since shared the pictures, claiming the disc-like shape of the airborne mass “proves” it is aliens.

But there could also be a scientific explanation for it.

The natural phenomenon called Altocumulus Lenticularis explains saucer-shaped clouds that are totally still and formed at high altitudes away from other clouds.

AccuWeather explains they “are formed when air moves over mountains, cooling sufficiently for condensation to take place.”