Category: Culture

Are quasars black holes?
culture
Are quasars black holes?

A quasar (/ˈkweɪzɑːr/ KWAY-zar; also known as a quasi-stellar object, abbreviated QSO) is an extremely luminous active galactic nucleus (AGN), powered by ...

Is ciao rude?
culture
Is ciao rude?

Ciao is probably the most common greeting among friends in Italy. However, it's an informal word and sometimes it's better to opt for something ...