For years, people have wondered whether there's life on other planets. Scientists may now be closer than ever to answering that question.

    Using powerful telescopes, a team of astronomers in South America discovered a new planet, called Proxima b. It circles a star named Proxima Centauri, in the same way Earth circles the sun. Proxima Centauri is the closest star to our solar system.

    Scientists believe the new planet has a rocky surface and is similar in size to Earth. More important, they've determined that the distance between Proxima b and its “sun” gives the planet a similar temperature to Earth's.This means it could have liquid water. The presence of water on a planet makes it possible for life to exist there. Scientists refer to planets like Proxima b as “Goldilocks planets” because they are not too hot or too cold, but just right to possibly support life.

    Astronomers have found other Goldilocks planets in the past, but none are as close to Earth as Proxima b. Still, the new planet is 4.2 light years from Earth—that is about 25 trillion miles away.

    Despite the long distance, astronomers hope to get a much better look at our new-found neighbor one day. But they'll need to wait until more advanced telescopes are developed. They may also send a robotic spacecraft to investigate the planet.

    Aunt Karen always had a special place in my heart. When I was growing up, I knew I could count on her to have room for me on her lap and words of love and encouragement when I needed to hear them. When she died five years ago, I was devastated. The whole family was still in shock when her husband, Uncle Ronnie, died a week later. I longed to have a small item of Aunt Karen's to remember her by, but seeing her children and grandchildren overcome by the grief of this double loss made me shy away from asking.

    A few months after Aunt Karen's death, I was on my way to work when I saw Rescued Treasures, a local second-hand store. I only had a couple of dollars on me and didn't really intend to buy anything, but I stopped anyway just to look inside. I had been shopping around for a few minutes when a small, black handbag caught my eye. It wasn't fancy or special. I didn't really need a handbag and continued to look around the store, but something kept drawing me back to that handbag. Finally, I checked the price tag (标签). It was just one dollar.

    The handbag stayed in the back of my car for weeks until I came upon it during a car clean-up. I opened it up. I couldn't believe it. They hadn't even cleaned it out. It was still full of junk, old candy wrappers, old receipts (收据) and used paper. Usually the store emptied things inside, so there wouldn't be any surprises for a new owner.

    I threw away some wastes, and sorted through the receipts, when I found one item in the small inside pocket. It was an insurance card with the name “Karen Stair” written on it. I began to cry. My beloved Aunt Karen. This was her handbag.

    A group of graduates, successful in their careers, got together to visit their old university professor. Conversation soon turned into complaints about stress in work and life.

Before offering his guests coffee, the professor went to the kitchen and returned with a large pot of coffee and a variety of cups—porcelain, plastic, glass, crystal, some plain looking and cheap, some exquisite and expensive—telling them to help themselves to the coffee.

    When all the students had a cup of coffee in hand, the professor said: "If you noticed, all the nice looking expensive cups were taken up, leaving behind the plain and cheap ones. While it is normal for you to want only the best for yourselves, that is the source of your problems and stress. Be assured that the cup itself adds no quality to the coffee. In most cases it is just more expensive and in some cases even hides what we drink. What all of you really wanted was coffee, not the cup, but you consciously went for the best cups. And then you began eyeing each other's cups.

    Now consider this: Life is the coffee; the jobs, money and position in society are the cups. They are just tools to hold and contain life, and the type of cup we have does not define, nor change the quality of life we live. Sometimes, by concentrating only on the cup, we fail to enjoy the coffee God has provided us."

    God brews the coffee, not the cups. Enjoy your coffee!

    "The happiest people don't have the best of everything. They just make the most of everything."

    Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God.

    When you think back to the blackboard from your school days, what color is it? Chances are that it's green. So what's up with the name? Originally, blackboards were really black. Before wall-sized blackboards existed, late 18th-century students used their own mini boards made of slate (石板) or painted wood, according to Concordia University, Those first boards were, in fact, black, and they paved the way for the larger ones.

    In 1800 when a Scottish headmaster named James Pillans wanted his students to draw maps, the students couldn't draw the maps their teacher wanted on their tiny boards, so Pillans put several slates together to create a large board. Problem solved! From there, the idea spread quickly as teachers could finally show a concept to the whole class at one time. By 1815, the massive writing spaces were common enough to earn their own name: blackboard.

    The color change came in the 1960s when companies sold, steel plates, coated with green enamel (漆) instead of the traditional dark slate. The new material was lighter and less fragile than the first blackboards, so they were cheaper to ship and more likely to survive the journey. Teachers weren't complaining either. After all, the new "greenboards" made the chalk powder easier to erase. Plus, the enamel left less of a glare and the color was nicer to look at. At that point, people started using the word "chalkboard "as a more accurate descriptor, but "blackboard" still stuck around.

    It was dinner time for the Rangers, a group of mostly Indigenous (本地的) Australians who had spent a long day cleaning up the polluted beaches of the continent's northern coast. Soon they would be eating freshly caught fish and seafood cooked under the stars on an open fire, as their ancestors did.

    The Rangers are of more than 100 Indigenous groups spread across Australia who have taken on the job of protecting the land of their forefathers. In Arnhem Land, they are the protectors of 3,300 square miles of land and sea. They comb the beaches by hand, picking up as much rubbish as possible. The task is very difficult as each day it delivers waves of new rubbish.

    For the Rangers, cleaning the beaches is more than a vacation. For a people whose culture is strongly tied to the land, protecting the environment is equal to preserving their history.

    However, colonization forcefully broke their connection to the land generations ago. Indigenous people were displaced and their cultural practices outlawed. Tens of thousands of years of traditional land management ended, and as a result many parts of the country now face serious disasters from invasive plant and animal species, bush fires and land mismanagement.

    In recent years, the government has restored more than 20 percent of Australia's land to Indigenous owners. Since 2007, the Indigenous Rangers Organizations have been at work protecting this land.

    Luck, one of the few non-Indigenous employees working with the Rangers, said the combination of old and new techniques and an appreciation for the culture of Indigenous workers has been critical to the program's success.

    "You are working with staff who see the world different to you, so there is a much higher focus on the cultural aspects of work and life," he said.

    "Being a ranger is a source of confidence. You feel strong," said Terence, a senior ranger. "Here we still live on the land. The culture is still alive."

Beethoven is a giant of classical music. And the most influential, too—at least, when it comes to piano compositions. That's according to a study in the journal EP J Data Science.

If you're wondering how data analysis could determine something as abstract as cultural influence, it's worth remembering this: Music is the most mathematical of the art form, a lot of which is symbolic. The music is written in symbols that are connected in time.

Juyong Park is a theoretical physicist in South Korea. Park and his colleagues collected 900 piano compositions by 19 composers from 1700 to 1910. Then they used that mathematical quality to their advantage by dividing each composition into what they called "code words", in other words, a chord. They then compared each chord to the chord or note that came after it, which allowed them to determine how creative composers were at coming up with novel transitions.

The composer with top marks for novelty was Rachmaninoff. But when the researchers looked at those chord transitions across all 19 composers, it was Beethoven who was most heavily borrowed from—meaning at least among the composers in this analysis, his influence was the largest.

Their study comes with some drawbacks. For example, the researchers only considered piano compositions in this work, and by only studying chord transitions, so their conclusions wouldn't relate to artists who were influential in other ways like Bach or Mozart. Park explained, "It's well understood that Mozart's contribution to music comes from the musical forms that he designed. That was not very well reflected by our mathematical modeling."

As for Park, the results convinced him he has some listening to do. "Of course I listen to music. I like Rachmaninoff's music, but I have to say I have listened to Beethoven way more than Rachmaninoff. So after this work came out, I ended up buying his whole complete collection.