According to Benna, this transient source of argon may be the result of enhanced outgassing from the surface that is triggered by tidal stress on the moon. (sciencedaily.com)
Passing within about 100,000 kilometers, or roughly a quarter of the Earth — moon distance, the researchers propose that asteroids feel a sufficient influence from Earth's gravity to induce what Binzel calls «a little bit of tidal stress, a little tug - of - war with the Earth.» (scientificamerican.com)
Now, scientists at the University of Chicago and Princeton University have pinpointed a mechanism by which cyclical tidal stresses exerted by Saturn can drive Enceladus's long - lived eruptions. (sciencedaily.com)