On Apr 6, 10:20*pm, BURT wrote:
How do accretion discs form in a flat plane around a star?

How does the gravitational order bring matter together in the solar
plane. How then does this matter proceed to become planets?

There were trillions of lumps of matter. How did they come together
for the order of the solar system we now see?

Nobody can do it. And never will.

Mitch Raemsch

Since our galaxy is actually comprised of at least one other galaxy,
and soon enough becoming a threesome along with Andromeda, where's the
insurmountable problem?

All sorts of cosmic stuff merges into becoming one composite of
complex gravity, magnetic force and the greater electrostatic unit of
something larger and more complex, so why not the merging of solar
systems or portions thereof?

Why not pick up a tidal gravity released item, such as a rogue planet
or moon from the nearby demise of another solar system (such as from
Sirius B), as having a local 3035 km/s merging velocity?

~ BG