Science tells us that certain things exist even before they are observed. It's like the double helix of DNA, scientists even knew what it looked like but only recently got a picture of it. Hawking radiation has not been observed, yet some scientists believe it is there because the universe does not seem to compute without it. Some scientists also believe God exists because it is the only way they see the universe as being possible.
Faith however, has been described as the substance of things hoped for, the evidence of things not seen. The evidence of things not seen is the common ground with science , imo. To me, the things hoped for part is our desire to give some meaning to life, the universe, and everything.