Telescopes have advanced considerably since Galileo's time. Humanity now has large observatories and even a couple in outer space. Two Small Pieces Of Glass shows how telescopes work; and how astronomers have used them to scrutinize the structures within our cosmos. Complemented with spectacular imagery of Saturn's rings, beautiful stellar nurseries and the spiral structure...

What keeps Galaxies together? What are the building blocks of the Universe? What makes the Universe look the way it looks today? Researchers all around the world try to answer these questions. We know today that approximately a quarter of the Universe is filled with a mysterious glue: Dark Matter. We know that it is...