“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.”

    Life is comprised emotion and sense. When we were babies we reached the pinnacle(顶峰) of emotion. At that time we asked for everything that we wanted, cried as we were uncomfortable, laughed as we were happy and released our emotions day and night. When we grow up we find that if we want to live in a cozier environment we must be sensible enough to deal with our emotions and relationships. Our world is based on sense and beautified by emotion.

    Sense is the base of life; it builds up the structure of life, and helps us see the real world. And emotion is the invaluable element of life. It adds colorful paint to our life. Lacking sense we may lose the guiding light and lacking emotion we may lose the value of life.

    We admire Da Vinci's Mona Lisa, we are attracted by Michelangelo's The Creation of Man, and we are carried away by Monet's Lotus. Shakespeare's Romeo and Juliet may bring us tears, Victor Hugo's poems can make a maid's love revive, and Jane Austin's stories arouse our dream of holding a party of ladies and gentlemen as an England beauty in the countryside. All of them are people who deserve our respect and showed us sentimental emotion: love, hatred, betrayal, loyalty and so on. They made their works full of emotion, shocked our nerves, and evoked our passions. Somebody may have found their destiny in these works, and surely they influence people time after time. But in fact, though these people or their works have the power to control our mental world, we don't choose them to be our President or Prime Minister. We cannot deny the fact that our world is based on sense and ration. Mark Twain once said that the passion of friendship is so sweet, steady and royal and enduring a nature that it will last through a whole lifetime if neither of the two friends asks the other to lend money.

    Emotion is our nature and sense gives us an eye to live in reality. Only sense makes Jack a dull boy; emotional moments give us vigor and enthusiasm to live and color our life.

    In the early 1980s, one of our neighbors asked my mom if she would make a few gift baskets for her to give as gifts for the holidays. My mom agreed and news of the unique gift baskets my mom was making spread like wildfire throughout the neighborhood. My mom was busy throughout the holiday season, so she asked a friend to help her. When the orders continued after the holiday season for baby gifts, birthday gifts and more, it occurred to them that maybe this job could be turned into a business and they did it.

    My mom went into her business because she had creative ideas. She got orders and filled order. But there was no goal and no real plan. In 1991, my mom's partner got into financial trouble and there was not enough money to support either mom or her partner.

    So if you are led by your creativity or enthusiasm, make sure you ask yourself what you purpose to do your business is. If you don't set goals, how will you know which direction to go in? Do you want to create jobs and growth in the economy? Are you looking for a hobby? You can't keep scores if you don't know what game you are playing.

    After my mom's partner quit, she had to abandon her business to support herself. She swore she would run a business again and do it differently the next time. However, there wasn't a “next time” for her. She passed away just after her 51st birthday. She never had someone tell her how important having a goal was, she never had a chance to be everything she could be.

    There are no right or wrong goals, only the ones that matter to you. Set them so that you can make progress and achieve success, whatever they may mean to you.

    America's top education official says many schools are spending too much time teaching the "basics"—reading, math and writing. It might seem opposite to what educators have been promoting. But U.S. Education Secretary John King says children really deserve access to a well-rounded education that includes music and arts because it will help them go into being well-rounded, well-educated persons.

    King spoke about his own education when explaining why schools need to teach more than math, reading and writing.

    King grew up in New York. Both his parents died when he was quite young. In his house, things were often crazy and frightening. It was his teacher, Mr. Osterwei, who helped him escape his difficult life. Quite often, the teacher took him and his classmates to the theater, the zoo, the ballet and famous Museum of Natural History. "Those were powerful, life-changing experiences, "King says. King graduated from Harvard University. He received his law degree from Yale University. He took charge of New York State public schools from 2011-2015. The U.S. Senate approved him as Education secretary last month.

    Many schools spend almost all funding on the "basics" because they lack money for other subjects, King says. Or they want students to do better on tests used to compare student performance.

    Students need to connect their studies and things that matter to them personally, such as music if they are to become "sophisticated(水平高的) thinkers". A 2013 report by UNESCO says today's world needs people able to solve new and unusual problems. It says arts can help students find those answers. In the report, UNESCO said teaching the arts in China, South Korea and Japan is different.

    From that in many Western countries, the emphasis(重点) in those three countries is "on joyful experiences and children's interests." In the West, educators are more likely to connect the arts to reading, writing and math. A 2014 report tried to compare how well countries teach children how to solve problems. It found Singapore, South Korea, Japan, China, Canada, Australia and Finland with the highest scores for 15-year-olds. Singapore led the way with a score of 562 out of a possible 1, 000. The average score was 500. The United States had a score of 508.

    Chinese scientists recently have produced two monkeys with the same gene, Zhong Zhong and Hua Hua, using the same technique that gave us Dolly the sheep. These monkeys are not actually the first primates(灵长类)to be cloned. Another one named Tetra was produced in the late 1990s by embryo(胚胎)splitting, the division of an early-stage embryo into two or four separate cells to make clones. By contrast, they were each made by replacing an egg cell nucleus(原子核)with DNA from a differentiated body cell. This Dolly method, known as somatic cell nuclear transfer(SCNT), can create more clones and allows researchers greater control over the edits they make to the DNA.

    Success came from adopting several new techniques. These included a new type of microscopy to better view the cells during handling or using several materials that encourage cell reprogramming, which hadn't been tried before on primates. Still, the research process proved difficult, and many attempts by the team failed. Just two healthy baby monkeys born from more than 60 tested mothers. This leads to many researchers' pouring water on the idea that the team's results bring scientists closer to cloning humans. They thought this work is not a stepping stone to establishing methods for obtaining live born human clones. Instead, this clearly remains a very foolish thing to attempt, it would be far too inefficient, far too unsafe, and it is also pointless.

    But the scientists involved emphasize that this is not their goal. There is now no barrier for cloning primate species, thus cloning humans is closer to reality. However, their research purpose is entirely for producing non-human primate models for human diseases; they absolutely have no intention, and society will not permit this work to be extended to humans. Despite limitations, they treat this breakthrough a novel model system for scientists studying human biology and disease.

One of the most important things in the world is friendship. In order to have friends, you have to be a friend. But how can you be a good friend at school?

Listen — Listen when they are talking. Don't say anything unless they ask you a question. Sometimes it's not necessary for you to have anything to say; they just need someone to talk to about their feelings.

Help them — If your friend is ever in need of something, be there to help them. You should try to put them first, but make sure you don't do everything they want you to do. Try to take an extra (额外的) pencil or pen with you to classes in case (以防) they forget one. Have a little extra money in your pocket in case they forget something they need.

Be there for them — Try to make something for your friend to help make them feel better in hard times. Making cards and encouraging them are among the nicest things you can do for a friend. Marilyn Monroe, a famous U.S. actor, once said, "I often make mistakes. Sometimes I am out of control. But if you can't stay with me at my worst, you are sure not to deserve (值得) to be with me at my best." Always remember this! If you don't want to stay with your friends when they're in hard times, then you don't deserve to be with them when they're having a good time!

______ — Try to make plans with your friends. Go shopping, go for ice cream, have a party, go to a movie and so on. Take time to know each other even better by doing something you both enjoy. By planning things together, you both can have a good time. And you'll remember these things when you're all old!