Scientists in Israel have created a model of a human embryo from stem cells, without using sperm, eggs or a womb. A team at Israel's Weizmann Institute of Science made the model, which resembles an embryo at day 14, when it acquires internal structures but before it lays down the foundations for body organs, and the work was published in the journal Nature. But the scientists involved said it would take a long time yet to create an embryo from scratch. Team leader Jacob Hanna said the team took stem cells derived from adult human skin cells, as well as others cultured in the lab, then reverted the cells to an early state.They then manipulated them to make a model of an embryo, rather than an actual or synthetic one. "The question is, when does an embryo model become considered an embryo? When that happens, we know the regulations. At the moment we are really, really far off from that point," Hanna said. However, they said the work could open the door to new ways to test the effect of drugs on pregnancies, better understand miscarriages and genetic diseases, and maybe grow transplant tissues and organs. "They are not identical. There are differences from human embryos, but still, this is the first time, if you open an atlas or a textbook, you can say - yeah I can really see the similarity between them," said Hanna. "In about 1 percent of the aggregates we can see that the cells start differentiating correctly, migrating and sorting themselves into the correct structure, and the farthest we could get is day 14 in human embryo development," he said. Their next goal, Hanna said, is to advance to day 21 and also reach a threshold of a 50 per cent success rate. Magdalena Żernicka-Goetz, a professor of development and stem cells at the University of Cambridge, said the study joins six other similar human embryo-like models published from teams around the world this year, including from her lab. "None of these models fully recapitulate natural human development but each adds to ways in which many aspects of human development can now be studied experimentally," she said. Sign up to our free Indy100 weekly newsletter Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

By David Stanway SINGAPORE (Reuters) -The target of keeping long-term global warming within 1.5 degrees Celsius (2.7 Fahrenheit) is moving

Twitter Inc. will purge accounts that haven’t been active for several years, and this could lead to a

COPENHAGEN (Reuters) -Icelandic authorities have completed the evacuation of 3,000 residents of a town in the southwest of the island

The full-frame Sony a7CR ($2,999.99, body only) squeezes the 60MP sensor and AI-assisted autofocus system

'Like a Dragon: Infinite Wealth' will make players "sick" if they try to play it all in one go.

Elon Musk is signaling he’s thinking about requiring users to pay to post on Twitter.

Forza Motorsport comes out today! Some players are wondering how they can track all of the game's bugs.

Meta Platforms Inc.’s Threads app — the social network rolling out this week to take on Twitter Inc.

News organizations are seeking regulations to govern the fast-moving artificial intelligence technology that threatens upheavals for their businesses

Getting those Blue Onions can be tough. Here's a guide to help you out.

Do you ever miss the good, old-fashioned home button on an iPhone? Starting with the