Constettation, galaxy, launched ,moon, sotarsystem, spacesnio, universe voyage

1.When NASA launched the Voyager space probe
everyone was very excited.
2 We thiNk there are eight planets in our___.
3 A group of stars is known as a ___.
4 There are many constellations in one
5 Some planets have more than one
orbiting
6 It takes a lot of experts to build a capable
of carrying astronauts safely.
7 Voyager hasn't finished its and is still travelling.
8 All matter is contained in one ___,but some
scientists wonder if there are more.