| The ____ Space Telescope was launched in 1990. |
Copernicus |
| The ____ Space Telescope was launched in 2021. |
Herschel |
| The Sun is one of the 100-400 billion stars in the ____ galaxy. |
Hubble |
| Nicolaus ____ proposed that the planets orbit the Sun. |
Milky Way |
| Polaris is the brightest star in the ____ constellation. |
Pluto |
| William ____ discovered Uranus using a telescope in 1781. |
Sirius |
| Clyde Tombaugh discovered the dwarf planet ____ in 1930. |
Ursa Minor |
| The brightest star seen in the Earth's night sky is ____. |
Webb |
