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Your kids want a tattoo or piercing? Here's what pediatricians recommend你的孩子想要纹身或打孔吗?这里是儿科医生的建议(测试)
Your kids want a tattoo or piercing? Here's what pediatricians recommend你的孩子想要纹身或打孔吗?这里是儿科医生的建议(测试)
The automation-resistant skills we should nurture. 我们应当培养的抗自动化技能
The automation-resistant skills we should nurture. 我们应当培养的抗自动化技能
Merkel: Europe 'can no longer rely on allies'. 默克尔:欧洲“不能再依赖盟友”
Merkel: Europe 'can no longer rely on allies'. 默克尔:欧洲“不能再依赖盟友”
Fidel Castro, Cuba's leader of revolution dies. 古巴革命领导人菲德尔.卡斯特罗去世。
Fidel Castro, Cuba's leader of revolution dies. 古巴革命领导人菲德尔.卡斯特罗去世。
Should EU citizens consider becoming British? 欧盟公民应该考虑成为英国人?
Should EU citizens consider becoming British? 欧盟公民应该考虑成为英国人?
US unemployment rate falls to 10-year low. 美国失业率降至10年低点。
US unemployment rate falls to 10-year low. 美国失业率降至10年低点。
Australia and New Zealand to pursue 'TPP 12 minus one'. 澳大利亚和新西兰寻求“TPP12减1”。
Australia and New Zealand to pursue 'TPP 12 minus one'. 澳大利亚和新西兰寻求“TPP12减1”。
Obama administration gives $500m to UN climate change fund.奥巴马班子向联合国气候变化基金捐5亿美元。
Obama administration gives $500m to UN climate change fund.奥巴马班子向联合国气候变化基金捐5亿美元。
George Michael 乔治.迈克尔
George Michael 乔治.迈克尔
Toxic liquor kills at least 32 in Pakistan. 毒酒致巴基斯坦至少32人丧命。
Toxic liquor kills at least 32 in Pakistan. 毒酒致巴基斯坦至少32人丧命。
Istanbul Ataturk airport attack. 伊斯坦布尔阿塔图尔克机场受袭。
Istanbul Ataturk airport attack. 伊斯坦布尔阿塔图尔克机场受袭。
Why Japan celebrated Christmas with KFC 为何日本用肯德基炸鸡庆祝圣诞
Why Japan celebrated Christmas with KFC 为何日本用肯德基炸鸡庆祝圣诞
Arctic heatwave could break records. 北极热浪可能破纪录。
Arctic heatwave could break records. 北极热浪可能破纪录。
Berlin attack suspect killed in Milan. 柏林袭击嫌犯在米兰被击毙。
Berlin attack suspect killed in Milan. 柏林袭击嫌犯在米兰被击毙。
Australia's oldest working scientist 澳大利亚最年老的在职科学家
Australia's oldest working scientist 澳大利亚最年老的在职科学家
South Korea corruption suspect Choi Soon-sil in court. 韩国腐败嫌犯崔顺实出庭。
South Korea corruption suspect Choi Soon-sil in court. 韩国腐败嫌犯崔顺实出庭。
Queen's 90th birthday portrait released. 英国女王90岁生日肖像照公布。
Queen's 90th birthday portrait released. 英国女王90岁生日肖像照公布。
One solution to two big social problems. 两大社会问题的一个解决方案。
One solution to two big social problems. 两大社会问题的一个解决方案。
Israel freezes ties with Unesco. 以色列冻结与联合国教科文组织的关系。
Israel freezes ties with Unesco. 以色列冻结与联合国教科文组织的关系。
Life in the blackest vacuum of outer space? (3) 外太空最黑暗的真空中有生命? (3)
英汉读者 com-BBC新闻 – 新发现表明, 基本的生命分子或可在外太空形成 BBC News – New finding suggests that the fundamental molecules of life might be formed in outer space
2016-04-30 23:29:45
Life in the blackest vacuum of outer space? (3)  外太空最黑暗的真空中有生命? (3)
BBC News - The gravitational tug of large planets, like Jupiter and Saturn, could sling some planets on "escape trajectories", propelling them off beyond their solar system into the empty space between stars.
 
That might seem to consign them to a cold and barren future. But some scientists believe that the first life on Earth was not powered by sunlight, but by volcanic energy released from the planet's interior at hot vents in the deep sea.
 
All of the rocky planets in the inner solar system come with two internal heat sources.
 
First, each planet has a fiery core still hot from the primordial fury of its formation. On top of that, they contain radioactive elements. Primordial heat and radioactive decay inside rocky rogue planets could warm them for billions of years – perhaps enough to keep the planets volcanically active and provide the energy for life to start.
 
Rogue planets could also have dense, heat-retaining atmospheres. Compared with gas giants like Jupiter and Saturn, Earth's atmosphere is thin and tenuous, because the Sun's heat and light have stripped away lighter gases like hydrogen. Mercury is so close to the Sun that it barely has any atmosphere at all.
 
Yet on an Earth-sized rogue planet, far beyond its parent star's influence, much of the original atmosphere might remain in place. The resulting temperature and pressure could be enough to sustain liquid water at the surface, even without any sunlight.
 
What's more, rogue planets would not be plagued by giant meteorite impacts, as Earth has been.
 
If these ideas are right, then outside our solar system rogue planets in interstellar space could be the closest places where extraterrestrial life exists.
 
(原文选自BBC新闻, 编辑翻译www.英汉读者.com-双语新闻百科; http://www.englishchinesereaders.com/)
 

 

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