Mars exploration advances with organic molecule discovery while volcanic lightning mysteries are solved and space-related cybersecurity concerns emerge.

NASA's Curiosity rover detected organic molecules on Mars, including chemical building blocks of life that may have been preserved for 3.5 billion years, though scientists cannot yet determine if they indicate past life.

Scientists made a breakthrough in understanding volcanic lightning, discovering that fine carbon coating on silica particles in volcanic updrafts causes the electrical charges responsible for these spectacular displays.

A Guardian investigation into the recent surge in UFO interest traces the phenomenon to recent US government releases of UFO videos, reflecting growing official acknowledgment of unexplained aerial phenomena.

Research revealed that mud-rich coastlines made the 2011 Japan tsunami far more destructive, as analysis of video footage showed how waves gained more force traveling over mud-rich rice paddies.

Chinese hackers are increasingly using everyday devices to target UK firms in espionage attacks, prompting Britain's National Cyber Security Centre to warn companies to increase vigilance.