Why is SpaceX focusing on rockets and not on the space shuttle?

Why is SpaceX focusing on rockets and not on the space shuttle? Well, for one, the Space Shuttle was retired, so why would SpaceX focus on a non-existent program?

The Space Shuttle did a lot but was also the most deadly of all of NASA’s manned space flights. More people died on the Shuttles than at any other time before or since. Six people died when the Space Shuttle Challenger blew up shortly after launch, killing all aboard. Another six people died when the Space Shuttle Columbia burned up on reentry over Texas.

That is why President Obama wanted to retire the Shuttle program and concentrate on getting a human on Mars. This vision is still supported by the new President until he figures out it was Obama’s vision (because he hates Obama) and cancels the program.

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Will space debris ever become so abundant that space flight will become economically or logistically impossible?

In 2007 China successfully destroyed one of their own aging polar-orbiting weather satellites just so they could prove they could. Debris from the destroyed satellite collided with Russia’s BLITS satellite in 2013, resulting in thousands of pieces of new space debris and is considered the most prolific and severe fragmentation in the course of five decades of space operations. Thanks China.

Now all we need is for North Korea to get their hands on that technology.

Still, space is a pretty big place and the pieces of junk are known and plotted so we can stay away from them, including little nuts and bolts travelling many times faster than a bullet.

Ever see the movie Gravity? Flaws in the science, but it was all about space junk taking out everything up there.
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Within 10 years, how can we live in space for approximately 1 year and on Mars for about 2 years, which is the time needed to catch the bus back home, which will take another approximately 1 year back home?

If you are wanting to think outside the box you might want to look at the Chinese space plans to launch a manned mission to Mars by 2020, at least according to CNN. If true, China will be the first ones to put footprints on Mars.

Why does everybody assume that if aliens do exist, they would wish to harm us?

Your operative word is “assume.” There are almost certainly aliens in our big universe. It’s just that they can’t visit us and we can’t visit them because of the pokey nature of the speed of light. We assume they’d do us harm because it makes for great Hollywood movies!

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Why can’t we fly to the moon? NASA is telling lies that they lost technology, does it mean we actually can’t get to the moon?

No technology was lost.

Going to the moon is very expensive, very far away and has no value now that the cold war with the Soviet Union is over. We can’t even balance the budget and Trump wants to cut taxes. During the Kennedy era going to the moon was a competition as to which country had the best space exploration. That’s over sorta except for Mars. Probably the first country to set foot on Mars will be China.

Going to the moon wasn’t a hoax. You can see trails left by the lunar rovers and reflect lasers off the reflector left behind just for that purpose. We can’t hide anything, even from Wikileaks, what to speak of a faked lunar mission 9 times over. The biggest hoax is the hoax theory itself.

Since President Obama the focus has been to go to Mars, but the moon is not out of the picture. NASA intends to harvest rocks from a nearby asteroid with a robotic spaceship, and then orbit that spaceship around the moon. They then plan to have a manned mission to orbit the moon, rendezvous with that robotic satellite and bring some of those asteroid rocks back to Earth for examination.

In the meantime, we have satellites orbiting and mapping the moon in detail.

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Extraterrestrial life is always talked about as being way more advanced than us, but what are the possibilities that they are not as advanced as us? Maybe that’s the reason we haven’t heard from them yet. Maybe they are still in the stone age.

Somewhere in this vast universe, billions of light years from here, there may or may not be intelligent life. Not always is it “talked about” as being more advance than us. I’m sure somewhere it is. We’ll never know for sure, however. The speed of light has a rather pokey speed when it comes to the entire universe, and the speed of light is the absolute speed limit. We’ll only ever be able to wonder. We’ll never know for sure.