Removal of the 14-day limit for culturing human embryos is one of the main changes in the revised recommendations from the International Society for Stem Cell Research.

Two new papers describe the generation of so-called blastoids, which could avoid the use of embryonic cells and make studying early human development much more accessible.

Three studies identify unintended consequences of gene editing in human embryos, including large deletions and reshuffling of DNA.

2018 closed with hubbub surrounding the purported birth of babies whose genomes had been edited using CRISPR. What will 2019 hold for CRISPR’s use in humans?

The college has opened an investigation into Michael Deem’s involvement.

New technologies reveal the dynamic changes in mouse and human embryos during the first week after fertilization.

The switch from maternal factors involves dynamic reprogramming of the zygotic genome.

Researchers use base-editing to swap out an erroneous nucleotide responsible for a potentially life-threatening blood disorder.

Six scientists question the authors’ conclusions about the DNA repair process that led to the human embryos’ correction of a defective gene.

Scientists correct a mutation in fertilized eggs that causes a severe cardiac disease.

The embryos, whose genes were altered by CRISPR, were not intended for implantation. 

Scientists have created a high-resolution, 3-D atlas of human embryonic development during the first trimester of gestation.

World leaders agree to fight superbugs; researchers edit human embryos; peer reviewers’ motivations

A new culture system allows researchers to track the development of human embryos in vitro for nearly two weeks.

Researchers at the Francis Crick Institute in London will use CRISPR/Cas9 to modify genes in early human embryos.

A look at the technologies now helping researchers edit human genes and discussions of the controversy that has ensued.

An international bioethics group says that research that involves editing genes in human embryos can be valuable, though it doesn’t approve of making “designer babies.”