All living things on Earth are made of the same building blocks: long carbon-based molecules. Scientists now think that a large proportion of these molecules came from outside planet Earth.地球上所有的生物都是由相同的构件
The measurements for the first maps most likely came from mapmakers' exploration of the local terrain. Eventually, more people traveled and documented the locations of distant land masses and bodies of water. Mapmakers compiled these in-person measurements, sketches and notes into representations of...
The question is “what came first, the Universe or Life?” A chicken and egg problem, to be sure, but easily resolved. Since Universe could not have developed *at random*, without some plan and intelligent direction, we must assume that Life came first. We might say that Universe IS Lif...
What Makes Us Different The reason Barth differs (differ) from all the other__41__ (planet) in the universe is because of you and me. At first, we were living in caves, then came the ice age, then the meltdown, and__42__ (final), what we are today. We and Earth as a whole...
Scientists now think that a large proportion of these molecules came from outside planet Earth. Comets and asteroids could be the missing links of a long chain.科学家们现在认为，这些分子中有很大一部分来自地球以外的星球。彗星和小行星可能是生命的长链中缺失的环节。The chain began with the simple ...
WhenA Bite of Chinafirst season went on the air, countless viewers kept coming back for more as new episodes came out. Many were moved to tears by the touching stories of real people and the foods they love. And the show wasn’t just a hit in China. After the first season ended, mo...
A. It's the first time humans have found Scientists said three of the newly discovered planets are in seven planets like the earth.the so-called habitable zone(适居带). This is the are a around the B. It's the largest habitable zone humans parent star where a rocky planet is most ...
This year's theme is "Our Power, Our Planet", with campaigners calling on "everyone to unite around renewable energy" to help triple clean electricity by 2030. Helping to outline the movement's goals, Denis Hayes, the organiser of the very first Earth Day, said: "For years we...
"Are there hunters on this planet?" “在那个星球上,有猎人吗?” "No." “没有。” "Ah, that is interesting! Are there chickens?" “这很有意思。那么,有鸡吗?” "No." “也没有。” "Nothing is perfect," sighed the fox. “
“I think we’re going to see this switch within the next five years – first you’re going to see demo long-haul flights on 100% SAF, and then you’re going to start to see regular service,” he says. “That 2030 date is our target to have the plane ready, and I think the ...