Race to Space and Beyond! (vocab/concepts since beginning of year) Crossword

two countries that were in competition for dominance in space "firsts" during the Cold War of the 1950s and 60s
name of first artificial/man-made satellite sent into orbit around Earth
name of one of the first two US astronauts to land and walk on the Moon
name of US mission whose purpose was to eventually land men on the Moon
name of US lunar lander
point when a spacecraft makes contact with and travels through the Earth's atmosphere
refers to the Moon
refers to the Sun
getting brighter
getting darker
the lighter shadow part of an eclipse
time of year when the Sun heats the surface of the Earth the least
invisible force that attracts objects to one another
phase of the Moon where the left half is illuminated
ocean levels are at their peak when the Sun and Moon and Earth all align
occurs when the full Moon appears eerishly red
push or pull
amount of matter
burning ball of gas surrounded by planets
composed of chunks of rock found orbiting the Sun, between Mars and Jupiter
ball of frozen gases that approaches the Sun and is seen shining brightly at night with a long wispy tail (aka one of Santa's reindeer!)
distance of Earth from the Sun
path taken by an object as it revolves around another object
a planet goes from day to night and back to day
planet that is moonless, closest to the Sun
planet known for its Great Red Spot
only planet with an axis tilted on its side
planet known for its giant volcano, Olympus Mons