Inner Planets
what planet are we living On
Earth
what season are we in
Fall
Autumnal Equinox
what is the name of the model that the earth is in the center of the universe
geocentric
what was the first object to orbit the earth
Sputnik space capsule
what is a rotation
what is the closest planet to the sun
Mercury
The earths axis is tilted ____
23.5
who published the Heliocentric theory
Copernicus
what did the U.S launch in 1958
Explorer 1
what is a revolution
when earth goes around the sun
what are the four inner planets ( in order )
Mercury Venus Earth Mars
what is another name for spring
Vernal Equinox
who invented the telescope
Galileo
what did russia Launch in 1957
Sputnik 1
how long does it take earth to rotate
24 hours
what is another name for the inner planets
terrestrial planets
when does the summer solstice begin
who discovered the 4 jovian planets and the moons craters
Galileo
Who was the first man in space
Uri Gagarin
how long does it take for the earth to revolve around the sun
365 days
what is the smallest planet
Mercury
what two dates are day and night equal everywhere
March 21
September 21
who suggested the geocentric theory
Ptolemy
What was the Explorer1
The first satellite to orbit earth
how many years does it take earth to finish 1 cycle of precision
26000 years