资讯

科学家们发现,宇宙中最常见的冰(存在于彗星、卫星和星际尘埃中)内部隐藏着一种结构,这挑战了数十年来人们的认知。人们曾认为“非晶”冰是无定形的,但实际上它内部嵌有微小的晶体,每个晶体宽度约与DNA链相当。这些晶体可能重塑我们对行星形成、星系间物质运动的 ...
Scientists found low-density amorphous ice in space isn’t fully random - it hides tiny crystals, reshaping our understanding ...
The Universe’s most abundant ice isn’t formless—it’s secretly laced with crystals. And that might change how we think about ...
在计算机模拟环节,研究人员构建了两个水分子模型,并将虚拟“水箱”逐步降温至-120°C,以不同的降温速率冻结。这种过程导致冰体中晶体和非晶区域的比例不同。结果显示,当冰中含有约20%至25%的结晶部分时,其X射线衍射图样与前期实验数据吻合。实验方面, ...
Scientists from UCL and the University of Cambridge have revealed that "space ice"—long thought to be completely ...
Ice found in the vast reaches of space isn't as simple as previously thought. Contrary to long-held assumptions, new research ...
Water frozen in the depths of space has long been considered a shapeless, frozen fog. For decades, scientists believed it ...
Space ice” contains tiny crystals and is not, as previously assumed, a completely disordered material like liquid water, ...
"Space ice" contains tiny crystals and is not a completely disordered material like liquid water, as previously assumed, ...
According to the Academy of Athens, scientists have recently decoded the DNA of the famous Greek feta cheese.
A new analysis of ancient DNA reveals a previously unknown lineage of hunter-gatherers who lived in what is now Colombia.