Then youâll see why the psoas is integral to asanas as diverse as navasana (boat pose) and setu bandha sarvangasana (bridge pose), and how to engage and stretch this massive muscle for optimal benefit.
Â· just now. 1  The smallest planet we know about is Mercury, the closest planet to the sun. 2  Well no one knows what the smallest planet in the Universe is because it's so vast. 3  Yes, Mercury is the smallest planet in our solar system. 4  No idea what the smallest is in the universe. 5  No way to answer. 6  Simple - planet B612. 7  Nobody knows.
Alan Bustany, Trinity Wrangler, Amateur Astronomer, Planetary Enthusiast. A planet can be smaller than its own moon - if the planet is considerably denser than the moon. It should have a greater mass, of course. There is no such planet/moon in our SS. Up to date no exomoon is discovered, so we don't know if such planets/moons exist. Such systems should be rare.