Why should we invest? Well, the US prides itself on being number one in everything, even if we aren't actually number one. Without continuing to push the frontier of research we will fall behind eventually. The article above, or another article mentioned congress killing the Super Collider in Texas, it would have been able to produce the novel results that the Large Hadroc Collider is producing now. The US would be the world leader in particle physics. We are starting to fall behind. Europe is going to be the world leader, and in the future we will be reading articles written by Europeans. We could be excellent teaching centers for particle physics for years to come, but the best of the best will not be in the US.
The same could happen with astronomy. The Hubble Telescope led to over 9,000 scientific papers being published. Yes, that may seem like we were probably spending more money on research than just the money that we spent on Hubble, but remember we were also producing jobs to support those scientists that were writing the papers. The Webb Telescope is going to be significantly more powerful than Hubble. We have had some amazing picture of space and the universe around us because of Hubble. Pictures of the Crab Nebula, Pillars of Creation and the Rose Galaxy. See below.
|Top Left Crab Nebula, Right Pillars of Creation Bottom Rose Galaxy|
We are also starting to realize that what we're learning at the particle level may interact with the origins of the universe. For example, string/M theory also is a theory about how the universe was started. We need to be able to keep seeing back in time to understand how these theories interact with each other.