Cosmological Conundrums
Milky Way
The Milky Way galaxy is a barred spiral galaxy. Mother Earth is found
in the Milky Way galaxy as well as the other seven
planets"Seven planets recently spotted orbiting a dim star in our Milky Way galaxy are rocky, seem to have water, and are potentially “habitable” researchers studying the distant system said Monday. Though much remains unknown about the planets’ surfaces and atmospheres, the new measurements have not ruled out the possibility that they may harbour even rudimentary life, the scientists reported" ("Seven Planets").
scientists
have been able to identify to date. Sagittarius is thought to be the
center of the galaxy and is suspected to be a supermassive black hole
("Wiki Milky Way").

Spiral diamond in the sky,
Dust and gas disguised by night.
Surrounding hidden depths unknown,
Nature's twisting, swirling cyclone.

Bulging at the outer seams
with a supermassive center leaves
a galactic center of intense speed,
Six hundred kilometers per second
...Guaranteed.

~ M. Gail Grant