NASA scientists watched the hard-working $ 4 Billion-plus Cassini spacecraft to crash into Saturn in order to avoid contaminating Saturn’s Moon , Titan. The decision was made to avoid potentially contaminating one of Saturn’s moons — like Enceladus – an ice world which has essential ingredients for life, or Titan, a dynamic moon where it rains methane — with microbes from Earth.
Mars, on the other hand, has been contaminated as NASA has freely acknowledged in the past. See NASA Finally Admits, “We know there’s life on Mars because we…”
NASA acknowledges that it really had no other choice. Most people don’t realize it but Cassini was nearly out of fuel and had already been stretched years beyond its intended mission duration. Technically Cassini’s life was extended twice with new missions, the spacecraft had a limited fuel supply. So NASA announced in April that it would carry out one final mission, dubbed The Grand Finale.
The official time was Friday, September at 7:55:46 a.m. ET. Cassini after 20 years in space and 13 years orbiting Saturn and its moons was ordered to end its life and crash. It had provided incredibly detailed, high-resolution photos of one of the fascinating planets in our solar system.
NASA’s planetary science division director Jim Green spoke about Enceladus, a small, icy moon, spewing organic material that likely originates from a subsurface ocean.
“What we thought was an icy ball, when we observed the southern hemisphere and geysers of water spewing out into the Saturn system, it amazed us,” he told reporters.
“And it began changing the way we view the habitability or potential habitability of moons in the outer part of our solar system.”
Basically, NASA couldn’t let Cassini just run out of fuel as there would be no way to control the spacecraft, and could have potentially crashed into Enceladus or even Titan, Saturn’s largest moon, both of which are being studied for potential habitability.