A new study suggests Jupiter’s icy moon (卫星) Europa produces much less oxygen than previously thought. The study was based on the data
The study involved Juno’s instruments measuring levels of oxygen
However, the space agency noted those estimates of oxygen were much less than those measured in earlier studies about the moon. Europa is a little
Since Europa was believed to have a large ocean under its surface,
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May 15 (UPI)—China landed a rover (火星车) on the surface of Mars for
The Tianwen-1 orbiter launched from the island province of Hainan
China is the second country after the United States
The rover descended (下降) from the orbiter via entry capsule,
“Each step had only one chance, and the actions were
The rover will spend three months searching for
Fifty years ago, China successfully launched
The mission, Tianwen, got its name from a famous poet, Qu Yuan,
China
This time,
Experts consider it the start of China’s exploration of Mars,
Indeed,
How mysterious the night sky is! It
Almost 400 years after the first Earth-based telescope was invented, the Hubble Space Telescope was put into orbit, giving astronomers
Laughter is a kind of universal body language that’s shared by people of all nationalities, skin colors, cultures and traditions. But did you know that the ability to tell genuine laughter apart from fake laughter also transcends cultures?
Greg Bryant, a professor of communication at the University of California, Los Angeles, US, published a study in Psychological Science in late July
In the study, 884 people from 21 countries were asked to listen to random recordings of laughter. Some of the recordings were made up of spontaneous laughs, while others were made by people who were asked to laugh
The study showed that people around the world have the ability to pick out real laughter,
According to Bryant, people from
But how do people from different cultures detect natural laughter so easily? And what traits does real laughter have?
As Professor Jessica Wolf of the University of California, Los Angeles, told the Association for Psychological Science, in real laughter our vocal chords “produce qualities
By contrast, fake laughter will “sound like speech”. According to ScienceDaily, fake laughter is controlled by the same brain system that controls the lips and tongue.
Bryant further explained that this system has
So that’s something to think about next time one of your friends laughs at something you said. Will you be able to tell if it’s real or fake?
According to a review of evidence in a medical journal, runners live three years
While running regularly can’t make you live forever, the review says it is more effective at lengthening life
The best exercise is one that you enjoy and will do. But otherwise … it’s probably running. To avoid knee pain, you can run on soft surfaces, do exercises to
A few people have lucid(清醒的)dreams, in
The researchers let 121 adults aged 19 to 75 pick something
The potential applications are