Trivia: How frequently is Halley’s comet visible from Earth?
Every 3 years
Every 15 years
Every 75 years
Every 214 years
The correct answer is Every 75 years
So why is this answer correct? : Halley’s comet is a periodic comet that orbits near Earth about every 75 years. The comet is named after astronomer Edmond Halley, who studied reports of the comet from 1531, 1607, and 1682 and concluded that the observations were all referencing the same recurring comet. The last time the comet was visible from Earth was in 1986, and it is projected to return in 2061.