human embryos
New Techniques Detail Embryos’ First Hours and Days
New Techniques Detail Embryos’ First Hours and Days
Jef Akst | Dec 1, 2017
New technologies reveal the dynamic changes in mouse and human embryos during the first week after fertilization.
Infographic: How Embryos Take Control of Their Own Development
Infographic: How Embryos Take Control of Their Own Development
Jef Akst | Nov 30, 2017
The switch from maternal factors involves dynamic reprogramming of the zygotic genome.
Technique Adapted from CRISPR-Cas9 Corrects Mutation in Human Embryos
Technique Adapted from CRISPR-Cas9 Corrects Mutation in Human Embryos
Catherine Offord | Sep 28, 2017
Researchers use base-editing to swap out an erroneous nucleotide responsible for a potentially life-threatening blood disorder.
Scientists Doubt Results of CRISPR’d Embryos
Scientists Doubt Results of CRISPR’d Embryos
Aggie Mika | Aug 31, 2017
Six scientists question the authors’ conclusions about the DNA repair process that led to the human embryos’ correction of a defective gene.
Details Published on CRISPR-treated Embryos
Details Published on CRISPR-treated Embryos
Kerry Grens | Aug 2, 2017
Scientists correct a mutation in fertilized eggs that causes a severe cardiac disease.
Scientists Edit Viable Human Embryos in U.S.
Scientists Edit Viable Human Embryos in U.S.
Kerry Grens | Jul 27, 2017
The embryos, whose genes were altered by CRISPR, were not intended for implantation. 
Image of the Day: See-Through Embryos
Image of the Day: See-Through Embryos
The Scientist Staff | Mar 26, 2017
Scientists have created a high-resolution, 3-D atlas of human embryonic development during the first trimester of gestation.
TS Picks: September 26, 2016
TS Picks: September 26, 2016
Tracy Vence | Sep 27, 2016
World leaders agree to fight superbugs; researchers edit human embryos; peer reviewers’ motivations
Embryo Watch
Embryo Watch
Jef Akst | May 5, 2016
A new culture system allows researchers to track the development of human embryos in vitro for nearly two weeks.
Embryo Editing Gets Green Light in U.K.
Embryo Editing Gets Green Light in U.K.
Bob Grant | Feb 2, 2016
Researchers at the Francis Crick Institute in London will use CRISPR/Cas9 to modify genes in early human embryos.