Four strands–of DNA, a bit different than the textbook double-stranded kind. While this squarish form of DNA is known to be chemically possible, a new study suggest that it may actually be present in living cells, in some cases, and may play a biological role;
Three dimensions of exoplanetary atmospheres may one day be open to investigation, according to a new technique that studies the different rotation patterns of exoplanet images obtained at different wavelengths;
One billion dollars are being invested by the South Korean government into a project to make fusion a feasible means of power production.
Links: Nature, Sky & Telescope
Image: Nature/J.-P. Rodriguez