Unistellar's Father's Day telescope deals will save you $500

Dark energy telescope reveals early look at almost 2 million cosmic objects

In 1930, Bernard Lyot invented the coronagraph that allowed total solar eclipses to be recreated at will. It is essentially a telescope with a small disk in the focal plane to exactly cover the disk of the sun like the moon would

Earth’s “Boring Billion” – Study Unveils 19-Hour Days in Earth’s Deep Past