——————————
NASA's mission to Saturn's moon Titan ——————————
讲者 Speaker Prof. Ralph Lorenz
日期 10月21号 周三
Date Wednesday, 21 October 2020
时间 Time 8 PM (GMT+8)
Scan the QR code below to register (free)
扫描下面的二维码,免费注册
![]()
〡The seminar is in English 〡该讲座的语言为英文
〡Participation is free
〡免费参加
Dragonfly Mission
A NASA mission to Saturn's moon Titan
Johns Hopkins University Applied Physics LaboratorySaturn's giant moon Titan has been revealed to be remarkably Earth-like, with a landscape of vast dune fields, river channels, and lakes under a smoggy sky punctuated by methane downpours. Titan serves as a frigid laboratory in which the same processes that shape our own planet can be seen in action under exotic conditions. Titan has a rich inventory of complex organic molecules that may provide clues on how the building blocks of life are assembled. NASA recently selected APL's Dragonfly mission concept as the next $1B-class New Frontiers mission to launch in 2026, to arrive in 2034. Dragonfly is an octocopter lander, able to repeatedly take off and fly tens of kilometers in Titan's dense atmosphere and low gravity to sample the surface in a wide range of geological settings. This presentation will describe the mission and how the concept was developed.雾霾弥漫、常有甲烷倾盆大雨、广阔的沙丘、河道及湖泊，这样的土卫六泰坦和地球极为相像。因为我们能够看到泰坦和地球相同的发展过程，所以可以把泰坦当作一个严寒实验室。泰坦含有丰富而复杂的有机分子库，这些有机分子或许可以提供有关生命组成部分的线索。 最近，美国国家航天航空局遴选“蜻蜓计划”成为下一轮新边疆任务，预计2026年发射， 2034年到达土卫六。蜻蜓探测器是一个八旋翼着陆器，能够在泰坦稠密大气层和低重力环境中反复起飞并飞行数十公里,从而在各地质环境中对地表进行采样。此次，报告目的是给大家介绍蜻蜓计划和论证过程。Ralph Lorenz worked as an engineer for the European Space Agency on the design of the Huygens probe to Saturn's moon Titan, and as a planetary scientist at the University of Arizona, and since 2006, at the JHU Applied Physics Lab. His activities have centered on Titan, Cassini-Huygens, and future missions there, but his interests include Mars, dust devils, sand dunes, planetary atmospheres and landscapes, and aerospace systems. He is associated with NASA's InSight mission at Mars and the Japanese Venus orbiter Akatsuki and is the Mission Architect for Dragonfly, NASA's next New Frontiers mission (a rotorcraft lander for Titan). He is the author or co-author of nine books including 'Lifting Titan's Veil', 'Spinning Flight', 'Exploring Planetary Climate', and 'Space Systems Failures', as well as over 300 journal publications. 报告人简介
Ralph Lorenz 教授曾担任欧空局土卫六泰坦-惠更斯探测器总设计师，同时也是美国亚利桑那大学的行星科学家。从2006年起，他加入约翰霍普金斯大学应用物理实验室。除了泰坦、卡西尼惠更斯卫星和土卫六泰坦计划等这些领域，他还致力于研究火星、尘魔、沙丘、行星大气与景观、航天系统等领域。他还为美国国家航天航空局的火星洞察号计划及日本金星拂晓号计划做出贡献。目前，他是美国国家航天航空局下一轮新边疆任务蜻蜓计划的总设计师。Ralph Lorenz 教授出版了包括'Lifting Titan's Veil', 'Spinning Flight', 'Exploring Planetary Climate', 'Space Systems Failures' 等9本书，还发布了300多篇学术论文。
Scan the QR code below to register (free)
扫描下面的二维码,免费注册
![]()
Upcoming Seminars
十一 十二月 November/December
11月4号 11/4
王赤 Prof. Wang Chi
NSSC/ESA SMILE Mission
微笑任务
11月25号 11/25
Prof. Heike Rauer
ESA PLATO Mission
“柏拉图”探测器计划
12月9号 12/9
Prof. Takehiko Satoh
Akatsuki Mission
Akatsuki任务
↓↓↓↓↓↓
Follow ISSI-BJ to stay up-to-date!
![]()
![]()
![]()
![]()