Lumosity claimed its brain games could improve mental performance and stave off age-related cognitive decline.
A former NASCAR driver just broke an 81-year-old speed record on a modified 1952 tractor.
It is one of the deadliest Decembers on record for tornadoes. Predicting tornadoes is still tough, but better tools are on the way.
The 12-foot long giant squid is only the third to be caught on video.
Here are some of the discoveries and developments brought on by NASA, planetary scientists, and the commercial space industry in 2015.
Thermometers in the Eastern U.S. are expected blast past record temperatures on Christmas Eve, with some of the highest highs in southern cities.
A leak in a key instrument used to measure seismic activity on Mars will hold back the March 2016 launch of the $675 million mission.
Snow fell on Washington, heavy wind downed trees, knocked out power, and smashed cars in Oregon, and rain brought relief to California.
Beijing's city government appears to be more concerned with protecting its citizens from hazardous air pollution.
It is not a direct threat to humans, but high levels of mercury in fog, could pose threats to animals and food supplies.