Why does Saturn have a ring system?

Probably the reason for the formation of the rings is several consecutive absorptions by Saturn of its satellites.

Calculations show that after Saturn was formed, several large satellites orbited close to Saturn. Gradually, due to gravitational effects, these satellites one after another "fell" into the bowels of Saturn.

In the process of descending from their orbits and entering the spiral trajectory, the satellites were destroyed. At the same time, the light ice component remained in space, while the heavy mineral components of the celestial bodies were attracted by the planet.

A visualization of the Laniacaeus supercollision, consisting of more than 100,000 putative galaxies.

HE 0437-5439 is the most famous rogue starIt is moving away from the Milky Way at 723 km/s and has already traveled 200,000 light years away.Its origin is still a mystery, but according to one theory, the triple star system experienced a close pass by the supermassive black hole Sagittarius A, located in the center of the Galaxy.

As a result, one of them was swallowed by the hole and the other two were thrown into intergalactic space by a powerful gravitational kick. The two soon merged into one massive star.

Test-driving a lunar rover during the Apollo 17 mission in December 1972. Oh yeah, not only were there people on the Moon, but also a real lunomobile!