Technology

2023-09-11 03:54:37

NASA discovered ‘Swift J0230’, a black hole that repeatedly eats large stars like the sun. ‘Swift J0230’ was first observed on June 22 last year. It was discovered in a galaxy regarding 500 million light-years north of Earth, and it periodically explodes in the same location. However, there was insufficient data to produce accurate statistics, and following more than a year of research, NASA confirmed that it was a new type of black hole. The black hole is the result of observations made by a new team within NASA, led by scientist Phil Evans, by analyzing data from the satellite X-ray Telescope (XRT). Phil Evans said of this discovery, “‘Swift J0230’ is a black hole with a mass of more than 200,000 times the mass of the sun, and it has become an indicator to confirm the interaction between different types of stars and black holes.” NASA said, “We have pioneered a new field in astrophysics. “In addition, the discovery of a new black hole and the satellite
1694406093
#NASA #discovers #black #hole #consuming #large #stars #sun #Hypebeast.KR

2023-09-11 04:00:05

A team of Israeli researchers from the Weizmann Institute has, for the first time, succeeded in creating complete models of human embryos without any sperm, uterus or egg. These embryos managed to develop without difficulty.
Image d’illustration Pixabay

This is a major scientific advance. To achieve this result, the researchers used “pluripotent” stem cells (also called “naïve” cells) which have the particularity of not having a predefined function, and of being capable of transforming into different types of cells. Some of these cells were used to become the embryo, others were transformed into the placenta, the placenta is a unique organ that physically and biologically connects the embryo in…), in the yolk sac or even in the extra-embryonic membrane of the mesoderm, and this by “simply” activating specific genes. The strains thus brought together then self-organized in a completely spontaneous manner, and managed to develop until they formed “embryo models”. The researchers were then able to observe these embryos growing without any difficulty, for 14 days: this is the legal limit authorized in the context of embryonic research (law of bioethics (Bioethics is a part of ethics which appeared , as…) of 2021). At this stage (A stage (from the ancient Greek στ?διον stadion, from the verb…), they measured 0.5mm and contained around 2500 cells.

Even if these results may raise ethical questions, they will allow us to know more regarding the first stages of embryonic development, which are still too little known to date. Furthermore, they might open the way to new research on congenital diseases or infertility (Infertility (or sterility) is the difficulty, even the impossibility,…) in particular.

Dynamic models of complete human embryos at day 14
1694405721
#Researchers #succeeded #creating #viable #human #embryos #sperm #eggs

2023-09-07 16:02:56

Published on September 7, 2023 at 5:15 p.m. Updated on September 7, 2023 at 6:02 p.m.

Will the magazine “XXI” reinvent a future in the hands of a new owner? According to our information, confirming that of “Le Monde”, a single takeover offer was filed with the Paris commercial court for the company Quatre, publisher of the magazines “XXI” and the biannual photography magazine “6Mois” and placed in receivership since on August 8. At the origin of the proposal, the professional information media publisher Indigo Publications (“La Lettre A”, “Glitz”, “Africa Intelligence”, “Intelligence Online”).

The offer must now be examined by the magistrates of the commercial court, who are responsible for confirming or not the takeover. A hearing is scheduled for September 26, the decision must then be pronounced quickly.

1694404539
#magazine #XXI #Indigo #Publications #publisher #Lettre