A European space telescope has launched off to explore the mysterious and invisible realm known as the dark universe.

SpaceX launched the European Space Agency’s Euclid observatory Saturday from Cape Canaveral, Florida.

It is expected to reach its destination 1 million miles away in about a month and begin its six-year survey this fall.

Named for antiquity’s Greek mathematician, Euclid will search billions of galaxies covering more than one-third of the sky.

Through the pinpointing of locations and shapes of galaxies up to 10 billion light-years away, scientists hope to gain insight into the dark energy and dark matter that make up most of the universe.