搜索结果: 1-15 共查到“国际动态 天文学 Mars”相关记录26条 . 查询时间(0.592 秒)
Life on Mars? Better tools needed to get the answer（图）
火星 生命 天体生物学
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2023/5/18
Current state-of-the-art instrumentation being sent to Mars to collect and analyze evidence of ancient life on the red planet may not be sensitive enough to make accurate assessments, according to an ...
Spanish lagoon proposed as Mars ‘astrobiological time-analog’（图）
西班牙泻湖 火星 天体生物时间模拟
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2023/5/18
The ongoing search for signs of life on Mars relies in part on terrestrial analogs – places on Earth closely resembling the past or current geology and climate of the red planet that can be readily ex...
Perseverance rover records sound of dust devils on Mars
毅力号火星车 火星尘埃 声音
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2023/5/18
The eerie sound of an extraterrestrial whirlwind has reached the Earth from more than 50 million miles away, thanks to the first working microphone to traverse the surface of Mars. The audio records t...
Climate cycles may explain how running water carved Mars' surface features
Climate cycles running water carved Mars surface features
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2016/12/13
Dramatic climate cycles on early Mars, triggered by buildup of greenhouse gases, may be the key to understanding how liquid water left its mark on the planet's surface, according to a team of planetar...
Pebbles on Mars Likely Traveled Tens of Miles Down a Riverbed,Penn Study Finds
Pebbles Mars Traveled Tens Miles Down a Riverbed,Penn Study
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2015/11/13
While new evidence suggests that Mars may harbor a tiny amount of liquid water, it exists today as a largely cold and arid planet. Three billion years ago, however, the situation may have been much di...
Climate models used to explain formation of Mars valley networks
Climate models Mars valley networks
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2015/11/13
The extensive valley networks on the surface of Mars were probably created by running water billions of years ago, but the source of that water is unknown. Now, a team of Penn State and NASA researche...
Mineralogical Confirmation for Liquid Water on Present-day Mars
Mineralogical Liquid Water Present-day Mars
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2015/10/13
Lujendra Ojha, the Georgia Tech Ph.D. candidate who led the study, first noticed these puzzling features in High Resolution Imagine Science Experiment (HiRISE) images returned by the MRO spacecraft as...
Obama's dream of Mars at risk from radiation（图）
Obama's dream Mars radiation
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2010/11/30
Higher levels of space radiation between 2020 and 2040 could endanger US President Barack Obama's vision for a manned mission to Mars, according to a NASA scientist. The result of two separate solar-a...
Public Invited to Pick Pixels on Mars – Scientists Taking Suggestions on Where to Image the Red Planet Using NASA Satellite
Public Pixels Mars the Red Planet NASA Satellite
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2010/1/26
The most powerful camera aboard a NASA spacecraft orbiting Mars will soon be taking photo suggestions from the public.
Since arriving at Mars in 2006, the High Resolution Imaging Science Experiment,...
Ancient Mars wetter than we thought（图）
Ancient Mars the planet's surface a frozen wasteland
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2010/1/11
Early Martian history may have involved more water on the planet's surface than was previously thought. That is according to researchers in the UK who have identified a series of geological features o...
NASA's Mars Rover Has Uncertain Future as Sixth Anniversary Nears
NASA's Mars Rover Sixth Anniversary Nears
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2010/1/11
NASA's Mars rover Spirit will mark six years of unprecedented science exploration and inspiration for the American public on Sunday. However, the upcoming Martian winter could end the roving career of...
NASA to Begin Attempts to Free Sand-Trapped Mars Rover
NASA Free Sand-Trapped Mars Rover
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2009/11/19
NASA will begin transmitting commands to its Mars exploration rover Spirit on Monday as part of an escape plan to free the venerable robot from its Martian sand trap. Spirit has been lodged at a site ...
Taking space in stride--New analysis could lead to better lunar, Mars spacesuits（图）
space lunar Mars spacesuits space suit
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2009/8/18
Anyone who has watched videos of the Apollo astronauts moving across the surface of the moon has noticed the unusual loping gait they sometimes adopted and their slow, almost graceful, movements. Now ...
Caves on Mars(图)
Mars Caves
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2007/4/11
Apr 04, 2007,Techniques used to scope out caves on Earth have been used to identify potential entrances to caves on Mars. If caves do exist on Mars, they might serve as a habitat for life by helping t...
New Evidence of Water on Mars（图）
Water Mars
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2007/3/7
March 2, 2007，NASA has released new detailed images that provide further evidence that water once flowed beneath the martian surface. Photos taken by Mars Reconnaissance Orbiter of Candor Chasma, one ...