Have you ever heard of the Coral Sea? It is home to an amazing variety of turtles, sharks, whales, dolphins, large fish, birds, corals, plants, and many other species. Many of these species are endangered elsewhere in the world, but still survive in the healthy environment of the Coral Sea.

    The Coral Sea is a large series of coral reefs located off the northeast coast of Australia. This area is three times larger than Australia's famous Great Barrier Reef, which the Coral Sea borders.

    The Coral Sea is one of the few coral reef environments that have remained largely undamaged by over-fishing, oil and gas exploration and pollution. However, statistics show that coral reefs around the world are disappearing five times faster than rainforests. It is very likely that in the near future the Coral Sea will face the same threats to its existence.

    The Australian government is currently looking at options for protecting the Coral Sea but has made no decisions. Environmentalists are pushing for laws to declare the Coral Sea area a marine protected area, which will mean a large “no-take zone” for fishermen, a no-exploration zone for gas and oil companies and a no-dump zone for pollution, possibly making the Coral Sea a marine park larger than any other in the world.

    We can write letters to Australian leaders, Australian environmental protection agencies, and Australian friends, to let them know that people worldwide support this protection of the Coral Sea. To lose this last great marine wilderness world would be a loss for the whole world.

    We know cats like to hide in boxes and knock things over. But if you make a square on your floor, what will your cat do? Turns out a lot of cats will get inside it. Amazed cat owners repeated the experiment, often with tape(带子), but others with squares made out of ribbon, sheets of paper and even shoes.

    Cat experts weigh in

    So what makes cats so interested in a square on the floor?

    “We know that cats like safe spaces. It's possible that the mark on the floor creates some illusion(幻觉) on the floor that doesn't actually exist,” says cat behavior expert Mikel Delgado. “It might have enough similarity to a low-sided box that a lot of cats are attracted to it for safety.”

    Another cat behavior expert Ingrid Johnson agrees. “I would imagine they probably feel as if they are 'in' something. Though shallow, still comforting, offers the idea of sides,” she says. Johnson points out that cats have poor close-up sight, so they may have the idea that the tape is actually the sides of a square area. “Their sight is built for distance and speed, watching a mouse run across the field,” she says. “Close up, they're blind 8 to 12 inches off their noses.”

    Kitty curiosity(好奇心)

    Another reason cats are attracted by the square? Pure curiosity.

    Because cats are very sensitive to their environment, the tape square might be attracting them just because it's new and different, she says. The same thing would likely happen if you put a piece of cardboard or a paper bag on the floor. A lot of cats would check it out.

    A person's nose is important for breathing and smelling. The nose is also used in many popular expressions. Some people are able to "lead other people by the nose". For example, if a wife "leads her husband by the nose", she makes him do whatever she wants him to do. Some people are said to be "hard-nosed". They will not change their opinions or positions on anything. If someone is "hard-nosed", chances are that he will never "pay through the nose", or pay too much money, for an object or service.

    It is always helpful when people "keep their noses out of other people's business"—they do not interfere. The opposite of this is someone who "noses around all the time". This kind of person is interested in other people's private matters. He is considered "nosey". Someone who "keeps his nose to the grindstone "works very hard. This can help a worker "keep his nose clean" or stay out of trouble.

    One unusual expression is "it is no skin off my nose". This means that a situation does not affect or concern me. We also say that sometimes a person "cuts off his nose to spite his face". That is, he makes a situation worse for himself by doing something foolish because he is angry. More problems can develop if a person "looks down his nose" at someone or something. The person acts like something is unimportant or worthless. This person might also "turn his nose up" at something that he considers not good enough. This person thinks he is better than everyone else. He is "with his nose in the air".

    In school, some students "thumb their noses" at their teacher—they refuse to obey orders or do any work. Maybe these students do not know the correct answers. My mother always told me, if you study hard, the answers should be "right under your nose" or easily seen.

    Japanese technology giant Toshiba has built a huge "clean" factory farm where it is growing various types of lettuce (莴苣) leaves without sunlight or soil for sale in its new healthcare business.

    Located in a disused 21,000­square­foot electronics factory in Yokosuka, Toshiba announces to have created a perfect "bacteria­free" environment where it will grow three million bags of lettuce a year.

    Completely cut off from conditions outside the temperature controlled tank, lettuce inspectors wear full body suits while making notes on the quality and growth of the leaves on their iPads in order to prevent the air around the plants becoming contaminated.

    Each plant is given man­made lighting to trick it into believing it is exposed to sunlight, while vitamin and nutrients are put directly into its roots, meaning the lettuce does not need soil.

    Toshiba's new high­tech farm may produce the world's highest quality lettuce. The final product will be free of any form of bacteria or insect life before being placed into sealed (密封的) bags, which should ensure the product has a longer shelf life than other lettuces.

    The gardening technique aims to have a bacteria amount of no more than 1/1000th­much lower than that found in normal gardening soil.

    Toshiba aims to harvest three million bags of leaf lettuce, baby leaf greens, cabbages and other kinds of vegetables every year­with each bag likely to cost people £1.

    The most important thing in organic vegetables, the lettuce requires no pesticides (杀虫剂) but is expected to have a similar shelf to plants that have been heavily treated with chemicals.

    The lettuce factory is no marketing trick by Toshiba, however. Instead it represents the company's latest attempt to expand its technology­led business.

    There are already plans for the technology giant to build similar factories around the world over the coming years and it will also be selling the high tech equipment that allows factories to produce similar products of exceptionally high quality.

Narayana Peesapaty was sitting on a flight when he noticed a passenger trying to reach food with a biscuit after breaking his spoon. At that moment, the researcher's mind gave birth to a simple yet revolutionary concept — edible spoons.

How do you like your spoon?

Peesapaty's company, Bakeys, makes edible spoons mainly out of sorghum(高粱）though rice, wheat and water are also ingredients. They combine to form a dry eating tool that remains hard even when used in moist or hot foods. Bakeys also makes ginger and garlic flavored(风味) spoons to meet specific requests. All spoons are completely natural and acceptable for nearly all diets.

A rice replacement

An environmentally-minded water researcher, Peesapaty, designed his spoons to be eco-friendly in several ways. Sorghum was chosen as the main ingredient of the spoons instead of rice, which requires 60 times as much water. Sorghum was also chosen for the strength it would lend eating tool, and the grain requires little water, low energy and no chemicals to grow.

In place of plastic

The goal that Peesapaty hopes to attain through Bakeys is to prevent plastic from any contact with food. Plastic products can contain cancer-causing substances that come into food, and average plastic bottles take 450 years to break down. In contrast, a Bakeys' spoon is nutritious and break down in 10 days or less if thrown away. Peesapaty admits that using plastic is cheaper, but he also says that his spoons will be equally inexpensive when mass-produced.

China successfully launched the Chang'e-6 spacecraft on Friday. A Long March-5rocket lifted it off from the Wenchang Space Launch Site in Hainan. This was a huge success and a remarkable achievement for China's space exploration program. The launch not only shows China's advanced technological abilities but also makes scientists and space lovers around the world excited.

Collecting samples from the far side of the moon is a new thing for humanity. We have very little knowledge about this mysterious side. If the Chang'e-6 mission is successful, it will give scientists important and direct facts to know more about the far side's environment, geological features, and material make- up. This will be an important step forward in our exploration of the moon and the universe as a whole.

The Chang'e-6 spacecraft has an orbiter, a lander, an ascender（上升器）, and a returner. When it reaches the moon, it will land carefully on the far side. Within 48 hours after landing, a robot arm will carefully collect rocks and soil from the lunar surface. Also, a drill will go into the ground to take samples from deeper layers. At the same time, a series of complex scientific tests and analyses will be done to get valuable data.

The far side of the moon is very different from the side we can see. The Apollo basin in the South PoleAitken Basin is chosen as the landing and sampling place for the Chang'e-6 mission. This area is thought to have precious clues about the moon's formation and development, giving possible ideas about the early history of our celestial（天体）neighbor.

This mission has many technical difficulties and needs the latest technologies. It also gets help from international cooperation, showing the spirit of working together in the global search for space exploration. The exploration of the far side of the moon may provide valuable scientific data and open up new possibilities for future space activities, such as setting up long- term lunar bases and using lunar resources.

The success of the Chang'e-6 mission has the possibility to make more international cooperation in space exploration. It shows China's strong wish to add to the growth of global knowledge about the universe and encourages other countries to work together to find out the secrets of the universe.