科学与环境
Following ancient rain toward life-related chemistry clues on Mars
来源: Phys.org - latest science and technology news stories · 发布于
The Mars we know today is a cold, dry world of dust and rocks. However, around 3.8–3.6 billion years ago, it may have looked very different. Geological and mineral evidence suggests that, in its distant past, the planet experienced periods warm and wet enough for water to exist o
The Mars we know today is a cold, dry world of dust and rocks. However, around 3.8–3.6 billion years ago, it may have looked very different. Geological and mineral evidence suggests that, in its distant past, the planet experienced periods warm and wet enough for water to exist on its surface, potentially forming rivers, lakes and even an ocean in the northern hemisphere.
相关报道
Nasa heads to Scottish Highlands in its search for life on Mars
The US space agency says ancient rocks at Clachtoll have similarities to those on the Red Planet.
feeds.bbci.co.uk ·
Mulberry may reshape gut bacteria and influence metabolism
Mulberry compounds may reshape the gut microbiome in ways that support intestinal health and metabolism, with some combinations showing especially strong effects in animal studies. However, the results vary depending on the plant part and processing method, and the benefits have
All Top News -- ScienceDaily ·
NASA's Perseverance Mars rover finds groundwater, lakes, and hot fluids in one place
NASA’s Perseverance rover has uncovered a surprisingly complicated history of water in Jezero Crater. Scientists expected the crater’s Margin Unit to contain lake sediments, but instead found ancient igneous rocks that were altered by water on at least three separate occasions.
All Top News -- ScienceDaily ·
NASA’s Curiosity rover just hit 5,000 days on Mars and sent back this stunning view
NASA’s Curiosity rover marked 5,000 Martian days by capturing morning and afternoon views that were blended into a striking Mars “postcard.” The panorama shows Curiosity, its tracks, and the enormous landscape surrounding Mount Sharp and Gale Crater.
All Top News -- ScienceDaily ·
Blood tests reveal why astronauts get constipated in space
Spaceflight may dramatically change the gut within weeks, causing bacteria to break down more protein as food moves more slowly through the intestines. The shift could help explain astronaut constipation and may have wider effects on health, making it an important concern for fut
All Top News -- ScienceDaily ·