Almost three weeks after the successful test of a Chinese anti-satellite weapon, the US military has catalogued more than 500 pieces of debris created by the destruction of the obsolete weather satellite Watchdog groups are keeping a keen eye on the space junk, and are using data from the military to learn more about the weapon's capabilities.
Scientists searching for waves of gravitational energy that stretch space and time will soon be seeking the public's help in analysing their data.
Claims of cold fusion are intriguing but not convincing, according to the findings an 18-member scientific panel tasked with reviewing research in the area.
Nanoelectronics, electronics made of tiny components, took a leap forward this week with the announcements of the first molecule-sized transistors and logic gates.