Thomas Steitz, Biologist and X-Ray Crystallographer, Dies
Thomas Steitz, Biologist and X-Ray Crystallographer, Dies
Steitz determined the atomic structure of the ribosome, work for which he won the 2009 Nobel Prize in chemistry.
Thomas Steitz, Biologist and X-Ray Crystallographer, Dies
Thomas Steitz, Biologist and X-Ray Crystallographer, Dies

Steitz determined the atomic structure of the ribosome, work for which he won the 2009 Nobel Prize in chemistry.

Steitz determined the atomic structure of the ribosome, work for which he won the 2009 Nobel Prize in chemistry.

history, cell & molecular biology, microbiology
Image of the Day: First Contact
Catherine Offord | Oct 11, 2018
Cryo-electron tomography reveals how Salmonella sets up physical interactions with host cells.
When Normal Touch Becomes Painful, the Same Neurons Are Involved
Ruth Williams | Oct 10, 2018
In a condition called mechanical allodynia, when everyday activities exact misery, the same neurons that ordinarily transmit normal touch are involved in feelings of pain.
Image of the Day: “Ringing” Coral Reefs
Ashley Yeager | Oct 5, 2018
Algae on the reefs make a sound when they produce gas bubbles.
illustration of virus particles
Neanderthal Genes Likely Helped Homo sapiens Resist Illness
Shawna Williams | Oct 4, 2018
Modern humans retain DNA sequences from Neanderthals related to fighting off RNA-based viruses.
Mouse Stem Cells Made to Form Embryo-Like Structures
Ruth Williams | Oct 3, 2018
With just a molecular nudge, aggregates of embryonic stem cells take shape as a “gastroloid,” bearing the genetic hallmarks and spatial organization of early development.
Directed Evolution, Phage Display Nab Chemistry Nobel
Catherine Offord, Kerry Grens | Oct 3, 2018
The 2018 award goes to Frances Arnold, Gregory Winter, and George Smith.
Image of the Day: Transgenic Axolotl
Kerry Grens | Oct 3, 2018
Lineage tracing reveals how cells help the salamanders regrow chopped-off limbs.
Physics Nobel Goes to Laser Pioneers
Ashley Yeager | Oct 2, 2018
Three researchers, Arthur Ashkin, Gérard Mourou, and Donna Strickland, who worked on optical tweezers and chirped pulse amplification win the 2018 award.
Leprosy Researcher Wayne Meyers Dies
Catherine Offord | Oct 2, 2018
An accomplished infectious disease scientist, Meyers spent the 1960s treating and studying the condition in central Africa.
Ancient Teeth Tell the History of Equine Dentistry
Sukanya Charuchandra | Oct 1, 2018
Researchers studied 3,000-year-old skeletal remains from Mongolia to understand the origins of veterinary dental practices.
Infographic: The Search for Life Below the Surface
Catherine Offord | Oct 1, 2018
The recent expansion of large-scale scientific drilling programs, combined with intensified efforts to take advantage of existing portals into the crust, has led to an explosion of research on the deep biosphere.
Infographic: Effects of Satellite DNA–Binding Proteins
Sukanya Charuchandra | Oct 1, 2018
The linkers gather chromosomes together into chromocenters.
Chromosome Clusters Help Keep the Genome Together
Sukanya Charuchandra | Oct 1, 2018
Without certain DNA-binding proteins, chromosomes can escape the cell nucleus.
Charting Crescents, 1910
Sukanya Charuchandra | Oct 1, 2018
James Herrick, a Chicago doctor, was the first to describe sickled red blood cells in a patient of African descent.
Life Thrives Within the Earth’s Crust
Catherine Offord | Oct 1, 2018
From journeys into mines to explorations of volcanoes on the ocean floor, deep voyages reveal the richness of the planet’s deep biosphere.
Antibody Combo Knocks Down HIV in Clinical Trials
Kerry Grens | Sep 26, 2018
Some patients could suppress the virus without antiretroviral therapy for months after the drug infusions.
Call to Stop Using the Term “Mesenchymal Stem Cell”
Abby Olena | Sep 26, 2018
Critics say the misleading term actually refers to a heterogeneous population of cells, including possible tissue-specific progenitor cells and nonstem cells all lumped together.
Image of the Day: Parasite Stopped in Its Tracks
Iris Kulbatski | Sep 26, 2018
Suppression of a signaling pathway in Toxoplasma gondii prevents the parasite from replicating in host cells.
Human Skeletal Stem Cell Found
Abby Olena | Sep 20, 2018
Researchers recovered the cells that give rise to bone and cartilage from fetal and adult bone marrow and also derived them from induced pluripotent stem cells.