Alpha Centauri has a planet

On Nov 16, 1:00 am, Yousuf Khan wrote:
granite stone wrote:
I read an article that the moon's force on the mantle might give us
magma and magma is not chemical. In the same way some of the larger
planets may have a pull on our sun's mantle giving us solar
radiation. Since the sun spins every 6 days the spin travels through
the pull on the sun's mantle, energy, huge amounts of it, is given
off. If all stars are suns, you could say each star has planet
pulling on each sun's mantle.

Google Tidal Forces Io and lots come up from NASA.

Uh, where do I start?

First the Moon and Earth's mantle. What you're talking about is tidal
heating. Typically tidal heating is more pronounced when a larger body
tugs on a smaller body, with a big size ratio between them. Your example
of the tidal forces on Saturn's moon, Io, is an example of that. Saturn
pulls on Io's crust and mantle and heats it up, but Io's tidal forces on
Saturn are puny by comparison. Similarly the Moon's tidal forces on
Earth are puny, and don't cause much heating in its mantle or anywhere
else. Earth's tidal forces on the Moon are much more substantial, but
still not substantial enough to create volcanism on the Moon. Most of
Earth's heating comes internally from its own nuclear fission core.
Earth's iron core is suffused with large quantities of uranium.

The Sun doesn't have a mantle. A mantle is a layer within a solid planet
between the crust and the core of that planet. What one might call a
mantle for the Sun would be its convection layer. The Sun doesn't have a
crust or a mantle, but it does have a core. The core of the Sun is where
nuclear fusion takes place, just like the core of the Earth is where
nuclear fission takes place. The nuclear fuel at the core is the main
source of heat for stars and planets.

Yousuf Khan

The reason volcanism is not on the moon is that the moon does not
rotate with reference to earth. And it would have to rotate at a high
speed too.