Cryo-electron microscopy structures of nucleotide excision repair complexes reveal the roles of the constituent proteins XPA, XPB, XPC, XPD, XPF, XPG and RPA in DNA bubble formation and excision of the lesion strand.
When a cell divides, it performs a feat of microscopic choreography—duplicating its DNA and depositing it into two new cells. The spindle is the machinery behind that process: It latches onto chromosomes (where DNA is stored) and separates them so they can se…
Scientists hope to probe the nature of general relativity through a possible pulsar found in the center of the Milky Way, near a supermassive black hole.
The element cobalt is considered a typical ferromagnet with no further secrets. However, an international team led by HZB researcher Dr. Jaime Sánchez-Barriga has now uncovered complex topological features in its electronic structure. Spin-resolved measuremen…
Scientists found a 307 million-year-old fossil, Tyrannoroter heberti, revealing one of the earliest known land vertebrates with teeth adapted for eating plants.
A multi-institutional team of researchers led by Virginia Tech's Fralin Biomedical Research Institute at VTC has for the first time identified specific patterns of brain chemical activity that predict how quickly individual honey bees learn new associations, …
Just in time for Valentine's Day, space offers a heart-shaped greeting. The star Mira A, about 300 light-years from Earth, has released material into an expanding cloud of gas and dust resembling a heart. Both the amount of material and the speed at which the…
Dashiell Hammett mentioned Sam Spade's jutting chin in the opening sentence of his novel, "The Maltese Falcon." Spade's chin was among the facial features Hammett used to describe his fictional detective's appearance, but starting with that distinctive chin w…
New research using a space-time phenomenon predicted by Einstein presents evidence that the invisible backbone of the universe may be much "fuzzier" than we realized.
Modern armor systems do not do a good enough job of protecting humans from blast-induced neurotrauma (brain and eye damage). To improve them, we may have to look to nature. In particular, a tiny shrimp that is able to protect itself from the shockwaves it gen…
The discovery of the Higgs boson hasn’t led to a explosion of new physics. Now, some scientists think that hidden physics may be hiding beyond LHC’s view.
Scientists have long known that Earth's core is mostly made of iron, but the density is not high enough for it to be pure iron, meaning lighter elements exist in the core, as well. In particular, it's suspected to be a major reservoir of hydrogen. A new study…
NASA engineers are targeting April for an uncrewed Starliner mission, with a crewed flight possible this fall, the agency’s commercial crew manager said Monday.
Boosting mitochondrial metabolism in neurons in central memory circuits by enhancing Ca2+ retention in the mitochondrial matrix is shown to improve long-term memory formation in flies and mice.