|The Earth is a slightly ____ spheroid (flatten at the poles).
|The Milky Way is a ____ galaxy with a black hole in the center.
|Uranus and Neptune appear ____ due to atmospheric methane.
|During a ____ eclipse the Moon blocks our view of the Sun.
|During a ____ eclipse the Earth casts a shadow on the Moon.
|Mars appears ____ due to iron oxide dust covering its surface.
|The distance between the Earth and Sun is one ____ unit.
|Eris, Pluto, Haumea, Makemake, and Ceres are ____ planets.