When other nine-year-old kids were playing games, she was working at a petrol station. When other teens were studying or going out, she fought to find a place to sleep on the street. But she beat these terrible setbacks（挫折） to win a highly competitive scholarship and gain entry （录入）into Harvard University. And her amazing story has inspired a movie, “Homeless to Harvard: The Liz Murray Story”.

    Liz Murray, a 22-year-old American girl, has been writing a real-life story of willpower and determination. Liz grew up with two drug-addicted parents. There was never enough food or warm clothes in the house. Liz was the only member of the family who had a job. Her mother had AIDS and died when Liz was just l5 years old. The effect of that loss became a turning point in her life. Connecting the environment in which she had grown up with how her mother had died. She decided to do something about it.

    Liz went back to school. She threw herself into her studies, never telling her teachers that she was homeless. At night, she lived on the streets. “What drove me to live on had something to do with understanding, and by understanding that there was a whole other way of being. I had only experienced a small part of the society,” she wrote in her book Breaking Night.

    She admitted that she used envy （妒忌）to drive herself on. She used the benefits that come easily to others, such as a safe living environment, to encourage herself that “next to nothing could hold me down”. She finished high school in just two years and won a full scholarship to study at Harvard University. But Liz decided to leave her top university a couple of months earlier this year in order to take care of her father, who has also developed AIDS. “I love my parents so much. They are drug addicts. But I never forget that they love me all the time. ”

    Liz wants moviegoers（常看电影的人） to come away with the idea that changing your life is “as simple as making a decision”.

    On a clear night, you can see a sky paced with stars. But you can't see planets orbiting any of these stars, even with the strongest Earth—based telescopes. Astronomers reported that they discovered seven Earth—sized planets orbiting a nearby star called TRAPPIST – 1 in February. They had to rely on indirect evidence to tell them that the planets are there. By doing some math, they figured out the number of planets and the distance of their orbits.

    TRAPPIST – 1 is a red dwarf （红矮星）, much smaller than our sun, but larger than Jupiter (木星). If the sun were the size of a basketball, TRAPPIST – 1would be the size of a gold ball. This star is one of our closest neighbors, just like the moon to the earth in space.

    When astronomers using Earth-based telescopes to study TRAPPIST – 1,they noticed that every once in a while, it became slightly dim（昏暗）. They decided that a planet must be passing in front of the star, blocking part of the light. This dimming would come and go as the planet orbited the star, passing alternately (交替地) behind and in front of the star regularly.

    By making careful observations, astronomers expected to get a rough idea of the planet's size from the pattern of dimming light. But the light level changed often and not at evenly spaced (均匀间隔的) times. The astronomers had to conclude they were looking at more than one planet! To get additional data, NASA's spritzer Space Telescope measured TRAPPIST –1's brightness nearly continuously for 20 days, catching 34 crossings of planets in front of the star. Sorting through the mess of data, the astronomers found that the innermost planet completes its orbit in 1.5 Earth days, while the outermost planet takes 20 days. Once you know how long it takes each planet to complete an orbit, you can work out how far it is from the star compared with the other planets.

    The TRAPPIST – 1 planets are not alone. So far, astronomers have found more than 3,400 planets that orbit other stars.

    While it's always a good time to visit Disneyland, there are times during the year that are better than others. Holidays, school schedules and yearly passholders greatly affect Disneyland's schedule. For example, Disneyland has a large number of locals. Many of those locals are yearly passholders, who think of the fantasy amusement park as their second home. They pop in for a few hours here or there — maybe on a weekday, or on a spring or fall Sunday morning before heading to the beach.

    Since the Happiest Place on Earth can be also one of the Busiest Places on Earth, it's helpful to have some tips in play when you hit the park. Here, we're outlining the best times to visit Disneyland in 2018.

    Weekdays in January (minus the week of New Year's Day)

    Weekdays in February (minus the days around President's Day)

    The first few days in March (until March 9, 2018)

    Weekdays in the second half of April 2018

    Weekdays in May

    The last two weeks of August

    The first half of September

    Mondays through Thursdays in November (minus the week of Thanksgiving)

    Mondays through Thursday during the first half of December

    If you're planning a visit, but don't see your particular dates here, click the comments below. We will be happy to provide answers. And our Disneyland Crowd Calendar is also available on line. It is a helpful tool to help you get an idea of expected crowds in advance.

    In recent years, much of the sea ice that polar bears use as a hunting platform for seal meals has melted, forcing some bears — particularly young males — farther north or onto land, where they are not as skilled at hunting. When stuck on land for months, a polar bear typically is forced to survive on its own fat reserves.

    The bears were listed earlier this year as a threatened species under the U. S. Endangered Species Act as populations have declined. Meanwhile, snow geese are booming near the western Hudson Bay, and there are in fact too many of them. Their eggs can be a good food source. The geese nest on tundra (冻原；苔原) that some bears have retreated to.

    "Over 40 years, six subadult (接近成年的) male bears were seen among snow goose nests, and four of them were sighted after the year 2000," says Robert Rockwell. "I've seen a subadult male eat goose eggs whole or press its nose against the shell, break it, and eat the contents."

    Ice is melting, on average, 0.72 days earlier each year in the region studied. Snow geese are hatching eggs about 0.16 days sooner each year, according to Rockwell and his graduate student Linda Gormezano. Current trends indicate that the arrival of polar bears will correspond to the average hatching period in 3.6 years, and egg consumption could become a viable option, which the researcher concluded in a statement released today.

    A polar bear, the largest land carnivore (食肉动物), would need to consume the eggs of 43 nests to replace the energy gained from the average day of hunting seals, but Rockwell and his colleagues figure that while many polar bears may starve in coming years, the resourceful animals just might survive disappearance.

    Polar bears survived a warm period about 125,000 years ago, when sea level was 12 to 18 feet higher than it is now and trees lived above the Arctic Circle, the scientists point out.  "They've been through the warm period before，" Rockwell said.

    The polar bears' potential movement to a diet of more eggs brought to mind a quote by Ilkoo Angutikjuak, an Inuit who lives in the Canadian province of Nunavut, in the February 2008 issue of Natural History magazine, Rockwell said. Angutikjuak said: "The animals will adapt. I've heard that because they depend on sea ice, polar bears will disappear, but I don't believe it. They are very adaptable. As the sea ice changes, polar bears might get skinnier and some might die, but I don't think they will disappear."

The message is drummed into us from childhood: forgive people who've wronged you, because it's the right thing to do. Forgiveness is a virtue, we're told—the only way for us to truly move on and heal, freed from the baggage of bearing ill will.

However, I'm not buying it. Forgiving someone can indeed be a beautiful thing, but it's not always what's best for us. In fact, if someone has hurt you deeply and the relationship isn't healthy, trying to "fix" things can do more harm than good.

Most of us would probably agree that forgiving a wrongdoer means letting go of negative feelings—like anger and resentment—towards them, as if nothing happened. Actually this isn't helpful. It pressures us to minimize our feelings—to say "it's OK" when for us, it isn't. While it's not a good idea to focus on negative thoughts, recognizing and processing all of that pain is an important part of the healing journey.

A 2010 research paper published in the Journal of Personality and Social Psychology found that folks who forgave partners that didn't make them feel valued had less respect for themselves. Letting minor offences（冒犯） that happen now and again slide can be great for any relationship, but repeatedly forgiving bad behavior can encourage that person to keep hurting you.

At least, that's what 2011 research by psychology professor James McNulty argues. He found that when a partner was more likely to forgive those acts, the aggressor was more likely to keep committing them. McNulty suggests that this is because facing the consequences of their actions is what motivates people to change their ways, and being offered a clean slate can be a kind of pass to avoid making changes. So forgiving frequent and major offences, like verbal or physical abuse, can do more harm than good.

For me, this speaks to the core tension in the idea. Instead of looking to forgiveness like a magic medicine, we can focus on recognizing what happened and coming to terms with it, however that looks for us and without any sense of obligation towards our offender.

At just seven years old, Angelina Tsuboi discovered her passion for innovation. It all began with a simple game she programmed in her Los Angeles public school's Grade 2class. Today , at18, the Grade 12 student's initial curiosity has evolved into a deep-seated desire to use technology to decode (解码) real-world problems. 

In 2021, she co-developed Megaphone, one of her first apps, to tackle unanswered post-class questions and poor communication about events and announcements. Her problem-solving ability kept building from there. 

When she took online CPR classes at the start of the pandemic, she figured it couldn't be just her who was struggling with the steps. So she created an app called CPR Buddy ― a winner in the 2022 Apple Swift Challenge ― which guides users through CPR using vibrations (震动) to regulate breath. After winning the award, Angelina presented her work to Apple CEO Tim Cook, a highlight in her young career, but one she didn't lose her cool over. "There's no point putting people on a pedestal (神坛)," she says. 

The next year, Angelina built an app called Lilac, designed to assist nonEnglish-speaking single parents with resources for housing, job opportunities and translation support. She was inspired by her own experiences as a child of a single mother who immigrated to the US. 

When Angelina decided to pursue pilot training at the age of 16, she was struck by how difficult it was to find financial support, which encouraged her to create yet another app, Pilot Fast Track, which helps those longing to be pilots find scholarships for flight training. 

Looking to the future, besides applying to colleges with great labs, Angelina is exploring the field of aerospace cybersecurity and mechatronics ― combining computer science, electrical engineering and mechanical engineering. 

"There's not enough optimism in the world," she says. "I have also been in situations in my life where I've lost a lot of hope. But in the end, it is a mindset, and there are ways in any situation you're in to make it somewhat better. "