98K views · 486 shares | Halley's Comet, arguably the most famous comet, is a short-period comet that is visible to the naked eye from Earth. It last appeared in the inner parts of the Solar System in 1986 and is projected to return again in 2061. Know more about it! | Unacademy | Facebook

The 1910 Earth passage of Halley’s Comet brought much scientific revelation and much fear. This was because of our technological advances which revealed that the comet's tail consisted of a highly poisonous gas called cyanogen, leading to a mass panic among the public. Scientists tried to reassure them that nothing cataclysmic would happen, but the seed of hysteria had been sewn which gave birth to some interesting (funny) products including "anti-comet pills". Nevertheless, on 20 May, after Ear