'In 1650 Mizar was the first double one of these discovered; today we know it's actually a quadruple'
a star
DISCOVERIES: In 1650 Mizar was the first double one of these discovered; today we know its actually a quadruple
In 1650 Mizar was the first double one of these discovered; today we know it's actually a quadruple
In 1650 Mizar was the first double one of these discovered; today we know it's actually a quadruple
DISCOVERIES
a star
DISCOVERIES