Science
Discovery of the largest comet so far, about the size of Tianjin | Global scientific news
? Astronomy? The largest known long-period comet On January 8 this year, a team of researchers at the University of California, Los Angeles (UCLA) used the Hubble Space Telescope to identify comet Cmax 2014 UN??? Five pictures were taken. Combined with radio data from the Atacama large millimeter / submillimeter wave array (ALMA), the team confirmed that the effective diameter of the comet's nucleus is 119 ±15km, making it the largest known long-period comet. The results are published in the Astrophysical Journal KuaiBao. Tianjin has an area of 11966 square kilometers and an equivalent diameter of about 120km. The diameter of the comet is about the same as that of Tianjin.
By gaisndm Hawkshaw3 years ago in Earth
The biggest confusion for cat owners: why do cats have to wake people up in the early hours of the morning?
When you have to attend an important meeting in the morning, you are in a sweet dream at 4: 00 in the morning, but you are suddenly woken up by a cat jumping up and down. Why is the cat owner "crazy" in the middle of the night? How can shoveling officials keep their sleep?
By jsyeem shekels3 years ago in Earth
Why can birds fly so well?
A collection of journals and services under Nature, dedicated to serving the scientific community, we provide a range of high-quality products and services covering life sciences, physics, chemistry and applied sciences. Among them, the journal Nature (Nature), founded in 1869, is a leading international science weekly.
By jsyeem shekels3 years ago in Earth
13 days, make skin cells 30 years younger and restore their ability to produce collagen | Global scientific news
? Regenerative medicine? 13 days, make the skin 30 years younger. In 2007, Shinya Yamanaka first used cell reprogramming technology to transform normal cells with specific functions into pluripotent stem cells (iPSC), and won the Nobel Prize for this, but normal cells lose their specific function in the process. Recently, a study published in eLife builds on this work by stopping partial reprogramming during stem cell redifferentiation, preserving the specific function of skin cells and "rejuvenating" skin cells.
By gaisndm Hawkshaw3 years ago in Earth
Tianzhou IV was successfully launched and docked with the space station; Chinese team has developed an aerial robot that can "think independently" | Global science news
? Botany? Motuo, Tibet discovers the tallest tree known to Chinese mainland According to People's Daily, a research team led by Peking University (including Peking University, Xizijiang Ecological Conservation Center, Landscape Conservation Center and Beijing Digital Green soil Science and Technology Co., Ltd.) cooperated with the Forestry and grassland Bureau of Motuo County, Tibet. A 76.8-meter-high Budan pine was recorded in Green Village, back collapse Township, Motuo County, Tibet. It broke the previous record for the 72-meter king of Sequoia flousiana located in Gaoligong Mountain, Yunnan Province, and became the tallest tree found so far in the range of Chinese mainland.
By jsyeem shekels3 years ago in Earth
In 17 days, I photographed the International Space Station 400 kilometers away with 600 lines of code.
Tu Yuan Zhu Yijing & Xu Chengcheng, authorized However, at present, several common methods for shooting celestial bodies are not suitable for taking higher-precision photos of the space station.
By gaisndm Hawkshaw3 years ago in Earth
A satellite that has been lost for more than 40 years signals again, but scientists are in deep thought
Nowadays, human space technology is more and more developed, not only can we go to the moon and explore the moon, but also can launch more and more artificial satellites into the earth's orbit.
By Kevin Buttigieg3 years ago in Earth
The "Three Stars Pile" excavated gold mask, there was no alchemist at that time, how did this gold come
The Sanxingdui cultural relics have become a thousand-year mystery that is difficult to solve so far. The Sanxingdui and the Terracotta Warriors of Qin Shi Huang are two symbolic marks of Chinese archaeology in the international arena, with a very critical scientific research value, and have also unearthed many precious artifacts with very scientific research value.
By Ferrari Ron3 years ago in Earth
Pyramids were not built by slaves? Experts: the construction of the pyramids is very high treatment
The Egyptian pyramids are not only the pride and representative of the Egyptian people but also an insurmountable wonder in the minds of people all over the world. As archaeologists dig deeper and deeper, the story of the pyramids and the ancient Egyptian pharaohs is becoming clearer and clearer. Although there are still many mysteries about the pyramids that are difficult to solve, it is expected that the truth will be revealed in the future.
By Paul Weiest3 years ago in Earth
If all parts of the universe follow different physical laws, perhaps interstellar travel is no longer a dream
Throughout history, since the beginning of mankind, there has been a curiosity to explore the laws of the universe. Whether it is primitive people sitting in caves looking up at the stars, or now people use a variety of advanced means to explore the universe, and even want to understand the truth of the origin of the universe and so on, in fact, only one purpose, we are curious about the universe, but also full of desire.
By Zeev Lo Va3 years ago in Earth
