期刊文献+
共找到3篇文章
< 1 >
每页显示 20 50 100
Balloon-based exposed payload designed for astrobiological research in Earth’s near space
1
作者 YanQiu wang JianXun Shen +4 位作者 Chao wang WeiNing Li gaohong wang Wei Lin YuanDa Jiang 《Earth and Planetary Physics》 EI CAS CSCD 2024年第6期878-889,共12页
Earth’s near space,located in the region between 20 and 100 km above sea level,is characterized by extreme conditions,such as low temperature,low atmospheric pressure,harsh radiation,and extreme dryness.These conditi... Earth’s near space,located in the region between 20 and 100 km above sea level,is characterized by extreme conditions,such as low temperature,low atmospheric pressure,harsh radiation,and extreme dryness.These conditions are analogous to those found on the surface of Mars and in the atmosphere of Venus,making Earth’s near space a unique natural laboratory for astrobiological research.To address essential astrobiological questions,teams from the Chinese Academy of Sciences(CAS)have developed a scientific balloon platform,the CAS Balloon-Borne Astrobiology Platform(CAS-BAP),to study the effects of near space environmental conditions on the biology and survival strategies of representative organisms in this terrestrial analog.Here,we describe the versatile Biological Samples Exposure Payload(BIOSEP)loaded on the CAS-BAP with respect to its structure and function.The primary function of BIOSEP is to expose appropriate biological specimens to the harsh conditions of near space and subsequently return the exposed samples to laboratories for further analysis.Four successful flight missions in near space from 2019 to 2021 have demonstrated the high reliability and efficiency of the payload in communicating between hardware and software units,recording environmental data,exposing sample containers,protecting samples from external contamination,and recovering samples.Understanding the effects of Earth’s near space conditions on biological specimens will provide valuable insights into the survival strategies of organisms in extreme environments and the search for life beyond Earth.The development of BIOSEP and associated biological exposure experiments will enhance our understanding of the potential for life on Mars and the habitability of the atmospheric regions of other planets in the solar system and beyond. 展开更多
关键词 Earth’s near space biological sample exposure payload performance testing Mars analog ASTROBIOLOGY
下载PDF
Breakthrough in enclosed aquatic ecosystems in space:Supporting zebrafish survival for 43 days
2
作者 Maobin Xie Qing Tian +2 位作者 gaohong wang Weibo Zheng Shaowei wang 《The Innovation》 EI 2024年第6期9-10,共2页
In June 2024,the China space station’s closed aquatic ecosystem(CSS’s CAES)achieved a remarkable feat:zebrafish completed their life stages,from growth to development and reproduction,in 43 days,setting a new record... In June 2024,the China space station’s closed aquatic ecosystem(CSS’s CAES)achieved a remarkable feat:zebrafish completed their life stages,from growth to development and reproduction,in 43 days,setting a new record for space ecological experiments.Thismilestone not onlymeans progress inChina’s space ecosystem technology but also provides valuable data and technical support for closed-loop ecosystems in space missions. 展开更多
关键词 ECOSYSTEMS fish RECORD
原文传递
天体生物学研究进展和发展趋势 被引量:13
3
作者 林巍 李一良 +1 位作者 王高鸿 潘永信 《科学通报》 EI CAS CSCD 北大核心 2020年第5期380-391,共12页
天体生物学旨在研究宇宙演化背景下生命的起源、演化、分布和未来.天体生物学研究始于20世纪中期,已在生命起源、生命与环境协同演化、宜居环境、地外生命探测、生命星际传输、行星开发和保护等方面获得了一系列新发现和新认识,深刻改... 天体生物学旨在研究宇宙演化背景下生命的起源、演化、分布和未来.天体生物学研究始于20世纪中期,已在生命起源、生命与环境协同演化、宜居环境、地外生命探测、生命星际传输、行星开发和保护等方面获得了一系列新发现和新认识,深刻改变了人们对生命和宜居环境的理解.天体生物学是一门交叉性和探索性很强的学科,其发展不仅推动了生命科学、地球科学、行星科学、空间科学、天文学等不同学科的交叉融合,也增强了科研人员与工程技术人员、科学家与公众之间的对话和沟通.近年来,我国探月工程取得了举世瞩目的成就,酝酿中的火星、木星等深空探测旨在探索浩瀚宇宙,给我国的天体生物学研究提出了更高要求.本文综述了国内外天体生物学的研究现状、主要方向、关键科学问题和研究进展等,并对我国的天体生物学研究提出了若干建议. 展开更多
关键词 天体生物学 生命起源 宜居环境 生命探测 极端环境生物
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部