a scientist trained in physics

an Egyptian polymath (born in Iraq) whose research in geometry and optics was influential into the 17th century; established experiments as the norm of proof in physics (died in 1040)

a presocratic Greek philosopher and student of Thales who believed the universal substance to be infinity rather than something resembling ordinary objects (611-547 BC)

an ancient Greek astronomer who was one of the first to propose a heliocentric theory of the universe (circa 270 BC)

German mathematician and astronomer who made accurate measurements of stellar distances and who predicted the existence on an 8th planet (1784-1846)

United States mathematician and astronomer noted for his works on navigation (1773-1838)

the branch of physics that studies celestial bodies and the universe as a whole

observe the stars

an astronomer who studies the physical properties of celestial bodies

an astronomer who studies the evolution and space-time relations of the universe

an Egyptian polymath (born in Iraq) whose research in geometry and optics was influential into the 17th century; established experiments as the norm of proof in physics (died in 1040)

a presocratic Greek philosopher and student of Thales who believed the universal substance to be infinity rather than something resembling ordinary objects (611-547 BC)

an ancient Greek astronomer who was one of the first to propose a heliocentric theory of the universe (circa 270 BC)

German mathematician and astronomer who made accurate measurements of stellar distances and who predicted the existence on an 8th planet (1784-1846)

United States mathematician and astronomer noted for his works on navigation (1773-1838)

the branch of physics that studies celestial bodies and the universe as a whole