On February 6, Space X, a private US aerospace company owned by Elon Musk, has successfully launched its new Falcon Heavy spacecraft, making it the world's most powerful rocket.

    Falcon Heavy is the largest rocket since the retirement of NASA's Saturn V, which was used for the Moon missions in the 1970s. “Falcon Heavy can launch about 64 tonnes into low Earth orbit-that's almost three times more than the current running biggest launch vehicle, Delta IV Heavy, ”Imperial College astrophysicist David Clements told AI Jazeera. According to Space X, Falcon Heavy can lift into orbit a mass greater than a 737 jet loaded with passengers, crew, luggage and fuel.

    The rocket was designed with the idea of earning humans into space and opening the possibility of flying missions with people to the Moon and even Mars. For its first voyage, it carried Musk's $ 100,000 cherry-red Tesla sports car and a fake space-suited human model fixed in the driver's seat. Musk joked that “it may be discovered by some future alien race”.

    Falcon Heavy went into space on its last flight on February 6. The launch took place at NASA's Cape Canaveral Air Force Station and Kennedy Space Center in the US state of Florida, the spot also used for the Apollo 11 Moon mission and several space shuttle launches. It was delayed by several hours because of high winds in the upper atmosphere. Minutes after take-off, the two outer boosters (助推器) landed at the nearby Cape Canaveral Air Force Station.

    Space X announced plans to eventually use Falcon Heavy to launch two paying space tourists on a trip around the Moon. However, Musk said he will probably reserve that mission for another launch system, the BFR. Recently, Space X scheduled to launch a Falcon 9 rocket for NASA's TESS mission on March 20, 2018. It is reported that Space X is scheduled to complete 30 independent launch missions in 2018, at least half of which will use Falcon 9.

    The human brain remembers negative experiences more easily than positive ones. Our brains have developed this way because threats, like dangerous animals, had a more immediate effect on our ancestors' survival compared to positive things like food or shelter. As a result, you likely know what makes you unhappy, but do you know what makes you happy?

    Research suggests that our level of happiness depends partly on factors we cannot control—our genes and our life circumstances. But our level of happiness is also shaped by the choices we make. If you've been chasing wealth, fame, good looks, material things and power, you may be looking for happiness in all the wrong places. Psychologists suggest that the following habits make people happier.

    People who form close relationships tend to be happier than those who do not. The number of friends we have is not important. What matters is the quality of our relationships. Relationships that bring happiness usually involve the sharing of feelings, mutual respect, acceptance, trust and fun.

    People who exercise regularly improve both their physical and mental well being. Some research has shown that exercise can be as effective as medication in treating depression.

    When we are so interested in an activity we enjoy that we lose track of time, we are in a state of flow. The activity could be making art, playing piano, surfing, or playing a game. People who experience flow in their work or hobbies tend to be happier.

    People are more likely to be happy if they know what their strengths are and use them regularly, People who set goals and use their strengths to achieve them tend to be happier. People are especially happy when they can use their strengths to serve the greater good.

    People who think positively by being grateful, mindful and optimistic are more likely to be happy. Being grateful means being thankful, Bejing mindful means being open to, focusing on and enjoying the experiences of the present moment. Being optimistic means being hopeful about the future.

    You often can choose a private setting when you browse(浏览) the internet. But be forewarned: It may not afford nearly as much privacy as you expect. That's the finding of a new study.

    Major web browsers, such as Google's Chrome and Apple's Safari, often a private-browsing option. It's sometimes referred to as “incognito.” This option lets you surf the Internet browser and saves a record into its history of each page that you visited. And what sites you visit won't affect the suggestions your browser makes the next time you're filling out an online form.

Many people believe—incorrectly— that the incognito setting protects them more broadly. Most believe it even after reading a web browser's explanation of the incognito mode.

    For instance, a new study had 460 people read web browsers' descriptions of private browsing. Each person read one of 13 descriptions. Then the participants answered questions about how private they thought their browsing would be while using this tool. The volunteers didn't understand the incognito mode. This was true no matter which browser explanation they had read. The researchers reported their findings on April 26 at the 2018 World Wide Web Conference in Lyon, France.

    More than half of the volunteers thought that if they logged into a Google account through a private window, Google wouldn't keep a record of their search history. Not true. And about one in every four participants thought private browsing hid their device's IP address. That's wrong, too.

    Blase Ur was one of the study's authors. He's an expert in computer security and privacy in Illinois at the University of Chicago. Companies could clear up this confusion by giving better explanations of the incognito mode, his team says. For example, the browsers should avoid vague（模糊).The web browser Opera, for instance, promises users that “your secrets are safe.” Nope Firefox encourages users to “browse like no one's watching.” In fact, someone might be. (If you'd like to know more about the research information, please click here.)

    It all started in 2007 when James Bowen, a thirty­something drug addict who survived by playing guitar on the street, found an orange cat sitting in front of the door of his apartment.

    Bowen noticed the cat was wounded. Without hesitation, the young man took him to the Humane Society and spent the little money he had on medicine to heal him.

    Shortly thereafter, the cat, who was healing and feeling much better, began to follow the musician when he left the house. Then one day the cat got on the bus that Bowen took to the place where he worked.

    That's how the cat, who had recently been named Bob, began to accompany his human friend to his musical performances. Bob's mere presence attracted the attention of passers­by. He and Bowen would finish off each song with a high five. Pretty soon, the images of Bob wearing a scarf while sitting on the musician's shoulder, or keeping him company while he played the guitar, began to go viral all over the world.

    Eventually, the news found out about the pair and did a story for the magazine Islington Tribune. It was not long after that when a book agent appeared in their lives and gave them a chance to tell their story.

    By then, Bowen, who had managed to get away from drugs, wrote a novel called A Street Cat Named Bob. He related in great detail how meeting the cat changed him.

    The book soon sold more than six million copies and even spread beyond the borders of the United Kingdom. In fact, it was translated into thirty languages.

    Through all of these changing circumstances, Bob has always been with Bowen—on his shoulder.

    You can't make up a story like this. But life always gives opportunities to those who know how to get hold of them. So if you are ever in a position where a cat has chosen you, don't ignore it. You can't imagine all the good that life may have in store if you decide to accept the proposal.

    Angus, Doris, Gabriel and Kamil are some of the 21 names that have been chosen to be given to storms in the UK in the 2016/17 season.

    The Met Office, the UK's national weather service, decided to give storms boys' and girls' names in 2015 in the same way as they did in America.

    The Met Office hopes that naming big storms will mean people are more aware (意识到) of them and how dangerous they can be. Derrick Ryall, from the Met Office, said, "We have seen how naming storms elsewhere in the world raises people's awareness of storms before they break."

    In the past, the same UK storm could be given different names by different organisations. "We noticed that many organisations during the last couple of winters, when we have had bad storms, started giving names to them. Think back to the St Jude's Day storm in 2013, and the so­called Hurricane Bawbag in Scotland in 2011. But it led to confusion (混乱)," a Met Office spokeswoman said.

    According to the Met Office, there is a name for each letter of the whole alphabet (字母表), except for Q, U, X, Y and Z. That is the same as the naming tradition used in America. And not all storms will be big enough to get names — only those expected to cause great damage.

    If there are more than 21 storms in a year, the Met Office will start again with another name beginning with "A". However, according to Met Office spokeswoman Lindsay Mears, "It's unlikely we would get through the whole alphabet in one season. We had 14 storms in the very bad winter of 2013/14, and if the naming system had been in operation then we wouldn't have used the whole alphabet."

    The movie theater is a fantasy land that takes the dreams of anyone. It attracts groups of different tastes. There are certain characteristics that distinguish these people from one another. And the characteristics also help guide directors towards what is going to be the next big cinematic presentation.

    The Regulars

    They are basically amateur movie critics themselves due to the amount of movies they watch. They do not decide more between movies and can generally see two or even three in one sitting. So older people are the regulars due to their plenty of free time they have.

    The Young Parents

    Children's movies are their entertainment of choice, and they tend to choose light-hearted humor over everything. Usually friendly, this group are great at socializing. As for the movie category for children, directors trust this group as they know what is wanted and expected in the types of movies.

    The Couple

    They are quick to get into the cinema and usually buy what is required by the female partner. What is usually a similar theme in their movies is at least a hinting at a love story of some sort. These groups are excellent test subjects for the production of Nicholas Sparks type movies as they feel like their love story is the next big production and thus directors are drawn towards them.

    The Noisy Teens

    These types can interrupt a movie countless times. Though they may buy tons of food, they seem somehow not to send the food into their mouths and employees find much food is left on the floor as if a food fight went on during the film. Action and adventure movies come out usually for this crowd because the plot and fast-paced nature of the film usually keep the teens at bay for that time period.