However, most of the universe is what we think of as empty space. All the atoms together only make up around four percent of the universe.How old is the universe?Scientists think that the universe began between 13 and14 billion years ago with the start of a massive explosion called the ...
The universe is very big. What is the universe made of? A. stars and planets B. gas and dust C. matter and energy D. water and air 相关知识点: 试题来源: 解析 C。宇宙是由物质和能量组成的,“matter and energy”是“物质和能量”。“stars and planets”是“星星和行星”,“gas and dust...
Most galaxies are moving away from us, but the famous Andromeda galaxy is moving towards us. No need to panic. It will not happen for billions of years; by then, the entire human race will be dead or on another planet. It was thought that all the stars in the Universe were in the...
Exploring the former lakes of Mars, these scientists are hoping to answer one of the major questions of astronomy and biology. Is life a pretty ordinary phenomenon in the universe, popping up wherever conditions are favourable, or is it really a one-off phenomenon that we have practically no ...
🎊Trees and flowers are what you want.满树繁花,你是心之所向。🎊My journey is the stars and the sea.我的征途是星辰大海。🎊We all meet better ourselves.我们终将遇见更好的自己。🎊Better be your own universe.不如做自己的宇宙。🎊Live long and prosper.生生不息,繁荣昌盛。 #英语 #...
三、阅读理解。What is the origin of the universe? Here's a legend about it.At the beginning, the universe was like an egg, carrying Pangu. 18,000 years later, Pangu cracked the egg with a huge handmade axe. The light clear part of it rose up and formed the heavens, while the ...
What the universe actually looks like is a question that ___the old scientist since he was a boy. A.has fascinatedB.fascinatedC.had fascinatedD.fascinates 答案 【答案】A相关推荐 1What the universe actually looks like is a question that ___the old scientist since he was a boy. A.has ...
may be considered ALife’s cousin in that researchers in both fields are enamored by a concept called open-ended evolution (演化). This is the capacity for a system to create essentially endless complexity, to be a sort of “novelty generator”. The only system known to exhibit this is ...
Today, it's known that the long-term fate of a star depends on whether its mass is above or below a boundary called the Chandrasekhar limit. Stars of less than eight solar masses (M☉) or so are thought to end their lives as a long-lived stellar ember called a white dwarf star. ...
解析：此题信息主要出自于第二自然段的Alan Smith, a complexity scientist, is tired of such complaints。另外再看作者在最后一自然段的结论，just like life itself throughout the universe, the rise of ALife will prove unavoidable。由此可知作者对Alan Smith’s defence of Alife，持支持态度，故答案选A，...