“Hello, Earth! Can you hear me?” That's voice more than 400,000 people received recently. It was from Philae, a space vehicle that landed on a comet(彗星)in 2014. However, its transmissions (传输信号)back home went silent since then.

It took a long time for Philae to make its way across the solar system (太阳系)and reach comet 67P/C-G. The pace vehicle got there aboard the Rosetta probe (探测器), which has been circling around the comet since Philae separated from it in November, 2014．

Philae's job was to collect materials to study the comet's composition. And for about two and a half days after landing, it did just that, sending the information back to scientists on Earth. But Philae's landing on the comet's icy surface had not been smooth. While touching down, it jumped up and ended up in the shadow of something like a huge rock. Philae runs on solar power, but there was no light in the place where it landed. In the end, it failed to work.

However，as comet 67P/C-G moved closer to the sun, more sunlight reached the space vehicle, allowing it to power up and come back online. Philae then sent something to Rosetta, which passed on the information back to Earth.

“We only received the information for about 85 seconds, but that's enough to let us know it is alive and well,”says Stephan Ulamec, who works for the European Space Agency.“We hope to work out where it landed exactly on the 4-kilometer-wide comet. Now we plan to change how Rosetta moves so that Philae can keep on communicating and receiving instructions.”

    In modern society there is a great deal of argument about competition. Some value it highly, believing that it is responsible for social progress and prosperity; others say that competition is bad because it sets one person against another and because it leads to unfriendly relationship between people.

    I have taught many children who held the belief that their self-worth relied on how well they performed at tennis and other skills. For them, playing well and winning are often life-and-death affairs. In their single-minded pursuit of success, the development of many other human qualities is sadly forgotten.

    However, while some seem to be lost in the desire to succeed, others take an opposite attitude. In a culture which values only the winner and pays no attention to the ordinary players, they strongly blame competition. Among the most vocal are youngsters who have suffered under competitive pressures from their parents or society. Teaching these young people, I often observe in them a desire to fail. They seem to seek failure by not trying to win or achieve success. By not trying, they always have an excuse: “I may have lost, but it doesn't matter because I really didn't try.” What is not usually admitted by themselves is the belief that if they had really tried and lost, that would mean a lot. Such a loss would be a measure of their worth. Clearly, this belief is the same as that of the true competitors who try to prove themselves. Both are based on the mistaken belief that one's self-respect relies on how well one performs in comparison with others. Both are afraid of not being valued. Only as this basic and often troublesome fear begins to dissolve (缓解) can we discover a new meaning in competition.

"Mum, what does it mean when someone tells you that they have a skeleton(骨骼) in the closet?" Jessica asked. "A skeleton in the closet?" her mother paused thoughtfully. "Well, it's something that you would rather not have anyone else know about. For example, if in the past, someone in Dad's family had been arrested for stealing a horse, it would be ‘a skeleton in his family's closet'. He really wouldn't want any neighbor to know about it."

"Why pick on my family?" Jessica's father said with anger. "Your family history isn't so good. You know. Wasn't your great-great-grandfather a prisoner who was sent to Australia for his crimes?" "Yes, but people these days say that you are not a real Australian unless your ancestors arrived as prisoners." "Gosh, sorry I asked, I think I understand now," Jessica cut in before things grew worse.

    After dinner, the house was very quiet. Jessica's parents were still quite angry with each other. Her mother was ironing clothes and every now and then she glared at her husband, who hid behind his newspaper pretending to read. When she finished, she gathered the freshly pressed clothes in her arms and walked to Jessica's closet. Just as she opened the door and reached in to hang a skirt, a bony arm stuck out from the dark depths and a bundle of white bones fell to the floor. Jessica's mother sank into a faint(晕倒), waking only when Jessica put a cold, wet cloth on her forehead. She looked up to see the worried faces of her husband and daughter.

"What happened？Where am I?" she asked. "You just destroyed the school's skeleton, Mum," explained Jessica. "I brought it home to help me with my health project, I meant to tell you, but it seemed that as soon as I mentioned skeletons and closets, it caused a problem between you and Dad." Jessica looked in amazement as her parents began to laugh madly. "They're both crazy," she thought.

    Mom wanted only one thing for her birthday. “Can you find me another copy of this song?” she asked, and handed me a worn-out cassette tape (磁带). I knew exactly what was recorded on it: My Redeemer (救世主). I heard the song played at least a thousand times while growing up. After so many years, the cassette tape was too worn out to be used. I promised her I would find a replacement.

    My Redeemer became Mom's favorite song after my younger brother Tim was killed by a drunk driver in 1973. The only thing that helped her calm down was the soulful sound of My Redeemer from the local radio station.

       We recorded it on a cassette tape so she could listen to it any time she wanted but none of us knew who the soloist (独唱者) was. These days, I thought the song would be easy to find out. I went home and searched the Internet. Several songs with that title popped up, but none of them was the one Mom loved. I got frustrated.

    Mom's birthday drew near and then one day, I was driving home, listening to our local radio station. A familiar tune came on. It was My Redeemer! As soon as I could, I phoned the station. I got a line on the soloist, who was called Alan Parks. I typed his name into Google and found his home number in South Carolina. Minutes later, I was telling him how much his recording meant to Mom. He offered to ship two CDs out to me personally. I gave him my address.

    'Red Lion, Pennsylvania?' he said. 'Do you know the Logans?' 'They are our neighbors!' 'I've been friends with them for 25 years,' Alan said. 'They'll be at my concert at York Gospel Chapel on April 17th. Would you and your mom come too” We sure would. Mom was excited to hear Alan sing My Redeemer to her, live in concert —on the evening of her 87th birthday.

    Young people almost never get a good press(评论) these days. “Their outlook is centered on trashy books and films,” expressed one citizen in a letter I recently came across in the Daily Mail. It seems that people have been complaining about the young since ancient times. However, the young are probably no worse than they've ever been. And I think they're better. Teenagers today are brighter, more energetic, more outgoing, and more interesting than any generation before.

    The truth is, we hear plenty of bad news about youth, but we never hear about the majority. Surely they all want to be footballers or attractive models? Not a bit of it. When research company Britain-Thinks examined teenagers attitudes earlier this year, they found that the most popular goal (shared by some 70 percent) was to “have a job you love”, followed by having a university degree, owning your own home and being in a happy, long-term relationship. It tallies with another study by the Institute for Economic and Social Research, which found that what made teenagers happiest wasn't a new smart-phone or pair of shoes, but “the simple things in life” such as close friends, going swimming and spending time with their parents.

    Indeed, the more you look at the young, the more impressive they seem. They are, of course, more technologically knowledgeable and skillful than any generation before them. But the interesting thing is that they're not merely consumers; they're creators. Think of all those young people developing their own websites or machines.

    Seventeen-year-old Nick D'Aloisio is an example. He invented a news-summary app (应用程序)called Summly and sold it to Yahoo this year for a reported £18 million. The company offered him a job in California, but he turned it down. “I'll be staying in London,” he explained. “I want to finish my A levels and I couldn't really live on my own out there.”

    Of course they aren't perfect, and every generation has its fair share of bad apples. But I think our future is in safe hands.

    Sharing E Umbrella, a new umbrella sharing company based in Shenzhen, China, recently announced that it had lost most of the 300, 000 umbrellas since it was set up.

    China's sharing economy has been growing rapidly, with companies offering anything from bicycles and basketballs to phone batteries for people to rent. Customers make a small deposit（押金）and get to use the thing for a daily cost, with a fine put in place for every day if they fail to return the product in time. It's a simple business model, and market data shows that people see sharing as a cheap and convenient way to cut down waste.

    Zhao Shuping founded the Sharing E Umbrella, an umbrella sharing service, in April. By the end of June, he had already started in 11 major Chinese cities, including Shanghai, Nanjing and Guangzhou. While picking up the umbrellas was relatively simple, as they were made available（可得到的）at bus and subway stations, the return system turned out to be a different matter. "Umbrellas are different from bicycles, "Mr. Zhao told Chinese news site ThePaper.cn. "Bikes can be parked anywhere, but with an umbrella you need something to hang it on. "

    So instead of bothering to return the umbrellas back to a station, a lot of people just took them home, and Sharing E Umbrella has reportedly lost track of most of the 300,000 umbrellas. Considering that borrowing umbrellas requires a 19 yuan deposit, with a fee of 0.50 yuan per half an hour usage, Zhao says that he suffers a loss of 60 yuan per lost umbrella, so the company is now in the red, but he is not ready to stop it just yet. Zhao announces that Sharing E Umbrella still plans to roll out（推出）30 million nationwide by the end of the year.