The keys to a major process in DNA repair

Researchers from the Institut Jacques Monod (CNRS/University of Paris Diderot), the Institute of Biology of the Ecole Normale Supérieure (ENS/CNRS/Inserm), and the University of Bristol, have described for the first time ...

Mechanism for radiation damage identified

What exactly are the processes when x-ray photons damage biomolecules with a metal centre? This question has been investigated by a team of scientists at the Institute for Physical Chemistry of Heidelberg University. Using ...

Image: Stunning shot of Dione and Enceladus

Although Dione (near) and Enceladus (far) are composed of nearly the same materials, Enceladus has a considerably higher reflectivity than Dione. As a result, it appears brighter against the dark night sky.

Time-lapse analysis offers new look at how cells repair DNA damage

Time-lapse imaging can make complicated processes easier to grasp—think of a stitched-together sequence of photos that chronicles the construction of a building. Now, scientists from the Department of Energy's Lawrence ...

Nanocrystals don't add up for reactor materials

Lawrence Livermore researchers have found that nanocrystalline materials do not necessarily resist radiation effects in nuclear reactors better than currently used materials.

Why plants don't get sunburn

Plants rely on sunlight to make their food, but they also need protection from its harmful rays, just like humans do. Recently, scientists discovered a group of molecules in plants that shields them from sun damage. Now, ...

Scientists say the ozone layer is recovering

Earth's protective ozone layer is beginning to recover, largely because of the phase-out since the 1980s of certain chemicals used in refrigerants and aerosol cans, a U.N. scientific panel reported Wednesday in a rare piece ...

How hostile is space?

Space may seem calm, but it is a more hostile environment than that on Earth. Invisible radiation is a big problem for space enthusiasts and scientific instruments. Substituting electronic devices to do human tasks reduces ...

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