thanhtoong0

thanhtoong0

Chinese Astronauts Strengthen Tiangong’s Defenses Against Space Debris

On Aug. 15, Chinese astronauts Chen Dong and Wang Jie completed a 6.5-hour spacewalk to strengthen the Tiangong space station’s defenses against orbital debris. Working outside the station, they installed new protective panels and inspected external systems. The mission marked Chen Dong’s sixth career EVA—the most by a Chinese astronaut—and the third for Shenzhou 20’s crew. China’s space agency stressed that debris mitigation is a global concern, aligning with its policies on de-orbiting old spacecraft and passivating rocket stages. Experts warn that rising orbital traffic makes international cooperation essential.

Hubble Discovers White Dwarf Merger Remnant with Unusual Carbon Signature

An international team of astronomers has discovered WD 0525+526, an unusual white dwarf about 128 light-years away, using NASA’s Hubble Space Telescope. Unlike typical white dwarfs, this star formed through a stellar merger and shows an unexpectedly high carbon content. With a mass of 1.2 Suns and a scorching surface temperature of 21,000 K, the discovery suggests that such merger remnants may be more common than previously thought. Researchers believe these hidden stellar histories could reshape our understanding of white dwarf binaries and pathways to supernova explosions.