NASA Confirms Orion Heat Shield Survived Asteroid-Speed 48,000 km/h Earth Reentry - cristinaiglesias.com
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NASA has confirmed that the Orion heat shield successfully withstood temperatures reaching 2,200 degrees Celsius (4,000 degrees Fahrenheit) while slicing through the atmosphere at almost 48,000 km/h (30,000 mph)—or 39 times the speed of sound. Despite facing extreme asteroid-speed reentry conditions during the Artemis II mission, temperatures inside the crew capsule never exceeded a comfortable 21 degrees Celsius (70 degrees Fahrenheit), keeping the four astronauts safe throughout their return from lunar orbit.
The post-flight findings represent a massive engineering triumph for the American space agency, especially after the uncrewed Artemis I test flight in 2022 revealed alarming surface erosion. Critical data now demonstrates that an innovative trajectory adjustment reduced thermal cracking and char loss by a factor of ten, successfully validating the thermal protection system without requiring a physical redesign.
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Giant fungus discovered in Yunnan reveals new fungal family_InKunming - 昆明信息港
Dianjunus rex can weigh more than 2 kilograms. [Photo/Kunming Institute of Botany under the Chinese Academy of Sciences]Chinese scientists have discovered a previously unknown giant fungus in Yunnan province that constitutes a new fungal family after finding specimens that can grow up to 50 centimeters tall and weigh more than 2 kilograms. Dianjunus rex was identified by a research team led by Yu Fuqiang of the Kunming Institute of Botany under the Chinese Academy of Sciences, together with collaborators. Their findings were recently published in the journal Frontiers in Fungal Biology. The research established an entirely new fungal family, Dianjunaceae, highlighting how much remains unknown about fungal diversity even in a region renowned for its rich plant and animal life, according to the team. Dianjunus rex growing in a forest. [Photo/Kunming Institute of Botany under the Chinese Academy of Sciences]Researchers collected specimens from tropical and subtropical forests in Yunnan between August 2024 and July 2025. The fungi were found growing from the roots of recently dead trees and surrounding soil.
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