Today's Parola del giorno is the noun, il sistema solare, which means:
solar system
Our solar system consists of planets, a sun, asteroids and other space phenomenon! A great way to increase your vocabulary is to read about things you know about on the Italian version of Wikipedia.
You can use the English version (which sometimes are direct translations, but not always) as a way of testing yourself as you build new vocabulary.
The excerpt below is an article on the Sun (Il Sole):
"Il Sole (dal latino Sol) è la stella madre del sistema solare, il nostro sistema planetario, attorno alla quale orbitano gli otto pianeti principali (tra cui la Terra), i pianeti nani, i loro satelliti, innumerevoli altri corpi minori e la polvere diffusa per lo spazio (che forma il mezzo interplanetario). Il Sole, inoltre, costituisce da solo il 99,8% della massa del sistema."
"The sun (from the Latin sol) is the mother star of the solar system, our planetary system, around which orbit the eight principal planets (among which the Earth), nano-planets, and their moons, numerous other smaller bodies and widespread space dust (that forms the interplanetary medium). The sun, too, constitues by itself 99.8% of the system's mass."
Il sistema is masculine, not feminine. Most nouns in Italian with Greek roots are typically masculine. Other nouns that follow this pattern: il problema, il tema, il programma, among others!