I'm really rooting for them. SpaceX is in desperate need of competition.

Only thing I can think of is Ford and the invention of the assembly line.

Boost back will happen over the Gulf of Mexico after stage separation. Starship is going to put itself on a suborbital trajectory that will bring it back down off the coast of Hawaii.

I really hope that because it's a test launch that they time it perfectly for this effect. Seeing Super Heavys plume interacting with Starships on boost back will be an amazing sight.

In a way yeah you could say God put them there. Jupiter, the planets, our entire solar system came from a swirling cloud of gas and debris that overtime condensed down into the planets we know today. That is why they are all orbiting the same direction and are mostly on the same planes of orbit. Jupiter has indeed been collecting debris overtime. But anything that doesnt strike the planet gets ejected back out.

I suppose even broom is not quite right. Sheppard would be more fitting. Jupiter, Saturn. All the gas giants are what is responsible for stability. They have given our solar system the stability to allow for life on Earth.

Edit: Just to be clear. Moons and objects can be caught into orbits around other planets but it's usually the result of multiple gravitational influences not just one big gravity well. Then there's other instances like striking other objects. Objects breaking apart and such.

They've been there since the beginning. It probably has thousands of moons. Hell Jupiter has a ring! Its just very faint. The moons that have been discovered as of late are larger and more significant then a small rock. So they get catalogued.

Jupiters orbital velocity around the sun is added to any object entering its sphere of influence. Its how gravitational sling shots are done on spacecraft. Asteroids will absolutely do the same thing. They'll be either ejected into a higher orbit around the sun or a lower orbit based on their entry trajectory. Whatever is trapped by Jupiter has been trapped for awhile and was the remnant of its creation.

However if a new object is entering and doesnt hit Jupiter itself or a moon it will be ejected back out of the system with greater energy relative to Jupiter. Lagrange points are the closest things to actual gravitational traps.

More like a big broom vs a shield. Jupiters gravity could direct a rock towards Earth just as well it could divert one.

Our moon is crucial for Earth's life because of its relatively large size. It stabilizes Earth's rotation and provides a tide cycle. Both of which are crucial for life in terms of stability.

Jupiter and all the other gas giants have so many because they're more like remnants of their creation. Not much different than the asteroid belts. Just spare parts so to speak from the formation of the planets. So they don't do much for life. Not to mention the environment around Jupiter is incredibly hostile so even if the moons were providing something its too an extreme an environment.

Under the surface of the major moon however, well.. that's a different story.

https://arxiv.org/pdf/1806.08033.pdf

Alot of that goes over my head honestly so heres an explanation from the same guy in video format. https://youtu.be/PqEmYU8Y_rI

The number of planets and exoplanets does little for the chance of abiogenesis.

Belief is faith. Believing in aliens is no different than believing in God. Until we get out there and find out more we could just as well be completely alone vs the universe being crowded. Doesn't mean we've always been alone or will be. But we very well could be living in a period where we are the only life in the galaxy.

I wouldn't be surprised if it sounded like a perpetual rocket engine.

Future methane fueled rockets will be far less pollutant and even so it is a drop in the bucket of climate offenders. On top of that there being no alternative to spacs travel. Launches in particular. We're stuck with chemical rocket engines for the foreseeable future.

Report it as spam/misleading. YouTube does actually take them down.

Does Fifth Element count? That's my favorite movie of all time.

The only way to avoid extinction is to colonize other worlds. Earth could be utopia and still be wiped out by a cosmological event.

Planetary science. Alien worlds not in lifeforms, but in composition.

The moon IO for instance. It's typography changes as fast as our weather. Mind blowing.

I reckon you might actually get more zero g time on the plane versus Blue Origin.

Id like to. It'd have to be on Starship atleast though. I'm a bit on the claustrophobic side.