Dark matter is not made up of tiny black holes

more »
An international team of researchers has put a theory speculated by the late Stephen Hawking to its most rigorous test to date, and their results have ruled out the possibility that primordial black holes smaller than a tenth of a millimeter make up most of dark matter.
via Science Daily
Zazzle Space Exploration market place

Bacterial factories could manufacture high-performance proteins for space missions

more »
Nature has evolved protein-based substances with mechanical properties that rival even the best synthetic materials. Pound for pound, spider silk is stronger and tougher than steel. But unlike steel, the natural fiber cannot be mass-produced. Today, scientists report a method in which bacteria produce spider silk and other proteins that could be useful during space missions.
via Science Daily
Zazzle Space Exploration market place