CURRENT AFFAIRS

Detailed explanation-1: -C/2020 F3 (NEOWISE) or Comet NEOWISE is a long period comet with a near-parabolic orbit discovered on March 27, 2020, by astronomers during the NEOWISE mission of the Wide-field Infrared Survey Explorer (WISE) space telescope.

Detailed explanation-2: -Comet C/2022 E3 (ZTF) was discovered by two astronomers on March 2, 2022. They were using the Zwicky Transient Facility, made up of an ultrasensitive camera attached to the Samuel Oschin Telescope at the Palomar Observatory in California’s Palomar Mountain Range.

Detailed explanation-3: -NEOWISE data have been used to set limits on the numbers, orbits, sizes, and probable compositions of asteroids throughout our solar system, and enabled the discovery of the first known Earth Trojan asteroid.

Detailed explanation-4: -The nucleus is about 50 times larger than found at the heart of most known comets. Its mass is estimated to be a staggering 500 trillion tons, a hundred thousand times greater than the mass of a typical comet found much closer to the Sun.