Task: Identify the primary emotion conveyed in the tweet and assign it to either 'neutral or no emotion' or one or more of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best capture the tweeter's mental state.
Tweet: Professor: introduce yourselves and say one interesting fact\n\nHi I'm Ethan and the Sun will engulf our planet in a fiery explosion one day
This tweet contains emotions: 
anticipation, fear, joy