Astronomers using the James Webb Space Telescope have confirmed that Terzan 5, located in the Milky Way's bulge, is not a globular star cluster but a 'bulge fossil fragment.' It has undergone at least four distinct star formation phases, offering new insights into galactic history.
미국 연구팀이 우리은하 중심 블랙홀 궁수자리 A* 주변에서 3광년 길이의 원뿔형 빈 공간을 발견했다. 이는 블랙홀이 뜨거운 바람을 내뿜고 있다는 강력한 증거로, 50여 년간의 천문학계 수수께끼를 해결할 것으로 기대된다.
Scientists have discovered a giant, diagonally oriented magnetic twist deep within the Milky Way's Sagittarius Arm. This unusual structure, revealed through new radio observations and Faraday rotation analysis, challenges current models of galactic magnetic fields and suggests complex, long-term evolutionary processes.
Super-Earths, planets 1-4 times Earth's size, are the most common type of planet in the Milky Way, according to NASA's Kepler mission observations. These planets, which vary from rocky to gaseous compositions, form efficiently in protoplanetary discs but rarely grow large enough to become gas giants. Scientists estimate most stars host at least one planet of this size, making them far more prevalent than Earth-like planets in our galaxy. The James Webb Space Telescope is now being used to study their atmospheres for potential signs of life.
