Highlighting 10 major astronomical milestones of the past century in celebration of the Royal Greenwich Observatory’s 350th anniversary Founded in 1675 by King Charles II, the Royal Observatory ...

Astronomers have uncovered a distant celestial body that may be a new dwarf planet, orbiting the Sun from more than twice the distance of Pluto. Found by researchers at the Institute for Advanced ...

On July 4, Mercury will be easiest to spot in the evening sky. Just after sunset, look toward the west-northwest. Even if you ...