Space Exploration

Front

Occurs when the Moon passes directly between the Sun & Earth and casts a shadow over part of the Earth.

Back

Solar eclipse

Front

Phases following a new moon, more of the Moon's lighted side becomes visible.

Back

Waxing

Front

When the Sun is directly over the equator, number of daylight and nighttime hours are equal.

Back

Equinox

Front

Occurs when Earth's shadow falls on the Moon.

Back

Lunar eclipse

Front

Any object that revolves around another object

Back

satellite

Front

First artificial satellite launched into space: Laika, Sergei, Sigmund, Sputnik

Back

Sputnik

Front

Instrument that travels into the solar system, gathers information and sends it back to Earth

Back

Space probe

Front

First space probe launched into space by the US and survived a trip through the asteroid belt

Back

Pioneer 10

Front

Type of optical telescope that uses a curved or concave mirror to reflect light

Back

Reflecting

Front

Space probes launched in 1977 on Interstellar Mission to explore the outer planets and beyond

Back

Voyager 1 & 2