The Dracos hollowed out a planet-sized comet with a rocky core. They armed it, stocked it with an internal ecosystem (with dinosaurs to eat), aimed it at Solaris, and timed it to intercept Maldek’s, Mars’, and Earth’s orbits as the comet flew past.
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The comet continued toward the sun; it neared Earth. Earth, then ice- and ocean-covered, housed only non-technological, aquatic lifeforms. The comet’s gravity melted enough Earth’s ice and drew off enough water-cover to raise two continents–Lemuria (Mu) centered in the Pacific Basin and Atlantis, centered in the Atlantic Ocean Basin.

The Draco comet moved past Earth toward the Sun and orbited between Earth and Mercury. The sun vaporized the comet’s ice into a cloudy cover. Dracos within orbited it as the planet Venus and built seven domed cities on the surface.

Venus’ Dracos built Luna, a hollow, unspinning moon. They put it next to Earth. From the moon, they colonized Lemuria on Earth.

Dracos stocked Earth’s Lemuria Continent with Dinosaurs, the Draco food-source life form. The dinos migrated and evolved further throughout most of the Earth.
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Atlanteans bombarded Lemuria with electromagnetic pulses that sunk it. The Hawaiian Islands, California’s Coast, Australia, New Zealand, South Pacific Islands, Japan, Philippines, and Taiwan stayed above water.

Federation forces ousted the Dracos from Luna and Venus.

“Inner Earth became the homeland for most surviving Reptilians of Lemuria.”

On Atlantis, “whenever the Atlanteans detected underground Reptilian activity, they blasted the inner Earth."

Underground, the Dracos built the cities–HYPERBOLEA, SHAMBALLA, AGARTHA, AKKADIA and ran speed shuttles among them.