CURRENT AFFAIRS

Detailed explanation-1: -NASA’s New Horizons spacecraft, which is speeding on from its 2015 encounter with Pluto to study an object in the distant Kuiper Belt, appears to have detected what scientists are calling an interstellar “hydrogen wall."

Detailed explanation-2: -This mysterious bubble marks the boundary between the solar system and interstellar space and provides a marker for the edge of the sun’s influence. According to the latest findings, the barrier is actually a vast amount of trapped hydrogen atoms caught up in the solar wind of our star.

Detailed explanation-3: -NASA’s New Horizons spacecraft was the first spacecraft to explore Pluto up close, flying by the dwarf planet and its moons on July 14, 2015. In early 2019, New Horizons flew past its second major science target – Arrokoth (2014 MU69), the most distant object ever explored up close.

Detailed explanation-4: -New Horizons is an interplanetary space probe that was launched as a part of NASA’s New Frontiers program.

Detailed explanation-5: -The hydrogen wall has been described by the scientists as the place where bubbles of solar wind cease to exist. The mass of interstellar matter here is very small but strong enough to not let the solar winds to pass through. At the same time, it is not so strong to bust through the solar wind build up.