There is an interesting article about “Buddhistic” UFO according to interpretation of cakkavatti wheel found on Chinese Agama Sutra (or it’s parallel on Pali Nikayas):
The Agama Sutras record and propagate the message of Lord Buddha. Listed below are short extracts from these sutras, which convey information regarding UFO related material:
A roundel of treasure (i.e. ‘precious wheel’) suddenly appeared in front. This wheel was very bright and had one thousand spokes meeting at its centre. Its sublime craftsmanship was reminiscent of that associated with the beings residing within the divine-sky, and was not the product of this world. This precious wheel was constructed of pure gold, and possessed a diameter that measured around fourteen feet (approximately four meters).
A golden wheel suddenly appeared within the divine-sky…
At that time, the Chakravartin (i.e. ‘Divine Sage’) wandered through the world (i.e. across the ‘four seas’) via a precious golden wheel… The precious golden wheel then hovered over the palace.
The description of these golden treasure roundels (or precious golden wheels), records the behaviour often associated with the modern UFO phenomena. The one thousand spokes seems to suggest the radiation of light associated with UFO’s, as if ‘its sublime craftsmanship was reminiscent of that associated with the beings residing within the divine-sky, and was not the product of this world’. These ‘divine-sky beings’ suggests an extra-terrestrial origination. The idea that ‘the wheel has a diameter of 14 feet’ describes the dimension and size of a UFO. The golden colour confirms that a flying saucer radiates light, whereas the descriptive use of ‘Chakravartin’ (i.e. ‘divine sage’) can also refer to the concept of a ‘flying emperor’. This great ruler was able to fly over his entire kingdom whilst riding within a UFO (or ‘wheel of treasure’). This can also be termed the ‘kingly wheel’. There are four types of precious (or ‘treasure’) wheels. These different types of flying roundels vary in the materials used to construct them, such as gold, silver, copper, and iron – and possess the ability to freely change colour whilst in flight. It is well known that in ancient China, scholars identified ‘sun spots’ – or what looked like black dots on the surface of the sun. Perhaps the descriptions of the ‘black’ sun-spots –
The Buddha appears to be sat on a wheel situated within other wheeled structures. He is sat on a platform disc, with another disc behind his back and head, whilst a ‘halo’ surrounds his head and neck.
Thank you for your effort to search the keyword on the SC Chinese sutra, because I can’t read Chinese
Apart from that, it is interesting that the legend (or myth?) of Cakkavatti wheel, which found on many early suttas (Pali and non-Pali), can be interpreted as UFO sightings. And of course, this is just a UFOlogist stuff, not EBT-vadin stuff
Aren’t these lotus blossoms? Observe how the “flying saucers” framing the leftmost Buddha are painted identically to the lotus blossom on which that Buddha is enthroned. The paint is probably faded, making the white appearance. In addition to this, white lotuses (puṇḍarīka) and red lotuses (padma) are important visual motifs in Mahāyāna Buddhism, each with their own interpretive meanings, if the paint is not faded.
The leftmost Buddha was probably originally painted on a lotus blossom closer in colour to the rightmost Buddha. Similarly, the redder “flying saucers” at the top & bottom (as opposed to the lighter coloured lotuses) are identical in design to the blossom on which the rightmost Buddha is enthroned.
I am also thinking the “white fire” at the base of the “flying saucers” is actually depicting the roots of the lotus, which can be bright white: