After four silent years, the 27-year-old British singer Adele Adkins has finally introduced herself to the world again with Hello, the opening song from her third album (专辑) 25, which will come out on Nov. 20.

    Although Adele is a very successful singer now, music wasn't always what she saw herself doing. At age 10, when she saw her grandmother's pain over the death of Adele's grandfather, she pictured herself as a heart surgeon.

    "I want to fix people's hearts," she told the UK music website i-D, remembering the childhood interest she'd had in biology classes until she found out that her real talent was for singing.

    Adele didn't go to medical school, but many would agree that she still has healing (治愈) powers. "Her songs find the kind of memory every listener holds somewhere in their hearts. This kind of feeling is what people have always liked in Adele," said The Telegraph. "She writes a pop diary, sharing the simple secrets of her heart."

    Most successful pop stars make albums at a fast pace, but not Adele. After her second album 21 won the 2012 Grammy Award for Album of the Year, she made it clear with her label that she would spend "four or five years" making her next album. She told Vogue magazine, "I won't come out with new music until it's better than 21."

    Instead of seeking fame, Adele remained silent and moved to the countryside. In her free time, she loved to watch TV series Teen Mom, American Horror Story, and The Waling Dead.

    Living life as normally as possible is important to the singer's art. "Nobody wants to listen to a record from someone who's not living in the real world," Adele told i-D, "So I live a low-key life for my fans."

    Chicago is considering firm measures to prevent the Asian carp, a giant fish native to the Far East, from coming into North America's Great Lakes in large numbers. Such a move could cost up to$18bn, a heavy economic burden to the city.

    This species, more than a metre in length, was originally introduced to southern US states three decades ago to control weeds in sewage (污水) treatment plants. But they escaped into the Mississippi River and increased in number quickly, making their way north towards the Great Lakes and threatening the native fish species along the way.

    "Dozens of them will often leap out of the water as boats approach." Michael Beecham, a local environmental expert, described how frightening the scene was. "I've gone down the river and seen these fish jump up and hit me in the face. It is a big problem for our native species." he said.

    A meeting has been organized to find a technological solution to the carp problem, one of which involves blocking parts of Chicago's canal system. Listening at the meeting was John Goss, who was worried about the effect that having barriers in the canal system would have on industry. "It would certainly increase the cost of transportation," he told. "It is currently very cheap and efficient to bring materials and finished goods down the Chicago ship canal.''

    Another cheaper option is to eat the fish out of existence. Dirk Fucik is selling carp burger(鲤鱼汉堡包) at his fish shop not far from downtown Chicago. He thinks the carps are a great resource. "To catch it and throw it away is a waste," he says. "Eating them helps solve the problem and also provides jobs." But the idea has not yet caught on. So far, he is the only person in Chicago selling carp burgers.

    Legal information on call

    Even by the standards of poor countries, India is alarmingly — and unnecessarily — dirty. It needs to clean up. Most time of year, its capital, Delhi，smells as if something is burning. That is because of many things: the carcinogenic diesel（柴油）that supplies three quarters of the city's motor fuel, the dirty coal that supplies most of its power, the rice stalks that nearby farmers want to clear after the harvest and so on. All these make Delhi's air the most poisonous of any big city.

    This does not just make life unpleasant for a lot of Indians. It kills them. Recent estimates put the annual death toll from breathing PM 2.5 alone at 1.2—2.2 million a year. The lifespan of Delhi residents is shortened by more than ten years, says the University of Chicago-Consumption of dirty water directly causes 200,000 deaths a year, a government think-tank estimates, without measuring its contribution to slower killers such as kidney disease. Some 600 million Indians, nearly half the country, live in areas where clean water is in short supply. As pollutants taint groundwater, and global warming makes the vital monsoon（季风）rains more abnormal, the country is poisoning its own future.

    Indian pollution is a danger to the rest of the world, too. Widespread dumping of antibiotics（抗生素）in rivers has made the country a hotspot for anti-microbial（抗微生物）resistance. Emissions of carbon dioxide, the most common greenhouse gas, grew by 6% a year between 2000 and 2016, compared with 1.3% a year for the world as a whole.

    In the past India has explained its failure to clean up its act by pleading poverty, noting that richer countries were once just as dirty and that its output of waste per person still lags far behind theirs. But India is notably grubby（肮脏的）not just in absolute terms, but also relative to its level of development And it is becoming grubbier.

    It is true that some ways of cutting pollution are expensive. But there are also cheap solutions，such as undoing mistakes that Indian bureaucrats（官僚）have themselves made. By funding rice farmers, for instance, the government has in effect cheered on the overusing of groundwater and the burning of stalks. Rules that encourage the use of coal have not made India more self-reliant, as intended, but instead have led to big imports of foreign coal while blackening India's skies. Much cleaner gas-fired power plants, meanwhile, sit idle.

    Reliant on big business for funding and on the poor for votes, politicians have long ignored middle-class complaints about pollution, failing to give officials the backing to enforce rules. That is a pity, because when India does apply itself to ambitious goals, it often achieves them

    Next year it will send its second rocket to the Moon.

    Narendra Modi, the prime minister, promised with admirable frankness when he took over to rid the country of open defecation（缺陷）. Four and a half years and some $9 billion later, his Clean India campaign claims to have sponsored the building of an astonishing 90 million toilets. This is impressive, but India is still not clean. Its skies, its streets, its rivers and coasts will remain dangerously dirty until they receive similar attention.

I have struggled with feelings of unworthiness since forever. My most painful moments were at parties. My friends made fun of me because I was rhythmically (有节奏地)1 and I couldn't get my2 body to imitate the latest dance moves. I was never chosen to dance. I felt like I didn't3 . 

Around age 12, I decided that the way to4 these feelings of unworthiness was perfection. If I was just perfect then I would fit in. But this strategy didn't5 .My self-esteem (自尊心) was high when I got good grades and felt6 , but crashed when I didn't do well7 , or was left out. 

After several years of spiritual growth, it8 me that for many of us, self-worth is tied to our9 . We experience low self-worth10 we fail or lose approval. So I have begun to cultivate an unconditional self-worth. It's not about doing things perfectly.11 , "Unconditional self-worth" is the12 that you deserve to be alive, to be loved and cared for. 

The13 to unconditional self-worth is not always easy. It takes courage to free yourself from the 14 you've placed on your worth. But this journey is beautiful and worth taking. So I challenge you to embrace yourselves and find your metaphorical (隐喻的) 15 floor and move freely.

A lunar crystal (水晶) was found in lunar basalt particles (玄武岩颗粒) collected from the moon in 2020 when the Chinese moon mission landed in Oceanus Procellarum, returning with more than 1.7 kg of lunar samples delivered safely to the Earth. 

The crystal found on the near side of the moon is giving scientists hope of providing limitless power for the world forever. It is made of material previously unknown to the scientific community and contains a key ingredient for the nuclear fusion (核聚变) process, a form of power generation that uses the same forces that fuel the sun and other stars. It is transparent and roughly the width of a single human hair, and it formed in a region of the moon where volcanoes were active around 1.2 billion years ago. 

One of the primary ingredients found in this crystal is helium-3 (氦-3) , which scientists believe may provide a stable fuel source for nuclear fusion reactors. The element is incredibly rare on the Earth, but it seems to be fairly common on the moon. China's next moon mission is expected to be carried out by Chang'e 6 in 2024, which will attempt to collect the first samples from the far side of the moon, which never faces the Earth. 

Although it is too early for scientists to have made financial estimates on such a fuel source, it will undoubtedly be extremely costly. There is, of course, the matter of bringing the crystals back from the moon, especially in large amounts that are needed to fuel fusion reactors. 

Helium-3 produces significantly less radiation and nuclear waste than other elements. The current nuclear fusion process has raised serious safety concerns, and as a result, scientists have been searching for a way to create nuclear power from nuclear fusion. During the fusion process, radioactive waste is not produced, potentially making a securer and more efficient fuel source. 

Around 25 tons of helium-3 could power the US for a year. Multiple private companies and countries with space agencies have signaled their intentions to mine the moon for helium-3, and this latest discovery could kick start the race.