What are some good things that we've gotten out of the Space Program:

Hubble has shown the world Trillions of things that are too far away to see with a regular, backyard telescope.
NASA invented Velcro and a ton of things we use everyday.
The International Space Station (ISS) brought several countries together to work on a very big, expensive, Scientific project. We have made a lot of Scientific discoveries in Chemistry, Physics, Biology, Geography, Astronomy and other branches of Science and Math on the ISS.
It's very expensive to launch a rocket into space. NASA has to spend over 1 Billion dollars every time they launch a rocket. That is money that goes to companies and people all over the US and the rest of the world. That's "trickle down economics".
NASA and other space agencies have proven from space that the world is not flat. Scientists can watch the weather from space. They can spot hurricanes, tornadoes, Tsunamis and other things long before they can harm anyone. They can see lightning hitting Earth. They have discovered that lightning actually strikes Earth between 50-100 times per second!
They have sent spacecraft's to every single planet. They learned that all the gas giants (Jupiter, Saturn, Uranus and Neptune have rings around them. The only one you can see with a regular telescope at home is Saturn's ring.
They've discovered signs of possible life on Mars and a few moons in the Solar system, but no proof yet.
They've put military satellites in space, as well as others for GPS, Astronomy, Geology, Google Earth, Weather, Earth's atmosphere, and other things.
They've sent signals to other planets, in hopes of aliens intercepting the signals a Million light years away. They are also listening for signals from aliens.
Metiors and other things are headed toward Earth. NASA wants to find a way to stop them from hitting us and preventing a mass extinction of humans. (That's what killed the dinosaurs.)
If we are no longer able to live on Earth, we must find somewhere else to go.
The government has set off nukes in space for Scientific and military purposes. (Maybe nukes can be used to save Earth from being hit with a Metior.)
A lot of new technology had to be invented to build rockets powerful enough to get humans to space and be able to survive up there. New, advanced technology had to be invented to communicate with Astronauts from the ground.
Voyages I and II are in interstellar space, going far away from Earth. They now know how big the Heliosphere is.
The temperature of space is close to Absolute Zero. Scientists have done experiments on the Space Station to get even closer to Absolute Zero than the temperature of space. They can get closer to that temp on the ISS than they can on Earth.
They have talked about sending regular civilians like you and me to space for vacation. I'd love to go up, but, it will be too expensive.
Scientists know the appropriate size and composition of all the planets.
Probes have been sent to Venus. They landed on the surface and they stopped working within a few hours. Probably because it's so hot that they all may have melted or the acid rain may have damaged them as well. Either way, NASA knows that they can never send humans up there.
Spy satellites have been sent up for military purposes over countries like Iraq. They also have some over the US for: Military, law enforcement and Science. (Who knows, the government of the US and other countries might be watching you right now!)
It is really a lot of fun to watch a rocket launch.
There's a lot of things that were built Thousands of years ago which nobody can figure out how to replicate them and build them the same way today, including the Great Pyramids. They probably had help from aliens.
Some of the Pyramids line up perfectly with Orion's belt.
This is only scratching the surface of all the good things that have come from the Space Program.