Astronomy

Hour Angle

astronomy

Autumnal Equinox

Dates, & Facts

Tycho’s Nova

astronomy

Equinox

Dates, & Facts

Copernicus, Nicolaus

Biography, Facts, Nationality, Discoveries, Accomplishments, & Theory

Jemison, Mae

Biography, Education, Accomplishments, & Facts

Harding, Karl Ludwig

German astronomer

Umbriel

astronomy

Steady-state Theory

Definition & Facts

Lepus

constellation

Sheikh Muszaphar Shukor

Malaysian orthopedic surgeon

Prospero

satellite

Sagittarius

Constellation, Zodiac, Sign, Symbol, Dates, & Facts

Maskelyne, Nevil

British astronomer

Shoemaker, Carolyn

Biography, Astronomer, & Facts

Orbiting Astronomical Observatory

satellites