CURRENT AFFAIRS

Detailed explanation-1: -NASA’s TESS Discovers Planetary System’s Second Earth-Size World. Using data from NASA’s Transiting Exoplanet Survey Satellite, scientists have identified an Earth-size world, called TOI 700 e, orbiting within the habitable zone of its star – the range of distances where liquid water could occur on a planet’s surface.

Detailed explanation-2: -The first suspected scientific detection of an exoplanet occurred in 1988. Shortly afterwards, the first confirmation of detection came in 1992, with the discovery of several terrestrial-mass planets orbiting the pulsar PSR B1257+12.

Detailed explanation-3: -First exoplanet found around a main-sequence star Didier Queloz and Michel Mayor announce their discovery of the first planet orbiting a main sequence star, 51 Pegasi. The planet, which is half the size of Jupiter, practically grazes the surface of its star, a revelation that baffles astronomers.

Detailed explanation-4: -Scientists at NASA have discovered a new Earth-sized planet orbiting the habitable zone of its star. Data from NASA’s Transiting Exoplanet Survey Satellite (TESS) revealed the planet, called TOI 700 e, is within the habitable range of distances where liquid water could occur on the planet’s surface.

Detailed explanation-5: -NASA’s Webb telescope has discovered an exoplanet, which is any planet that is outside of our solar system, for the first time, the agency announced Wednesday. The planet, called LHS 475 b, is nearly the same size as Earth, having 99% of our planet’s diameter, scientists said.