If humans are going to live someplace other than Earth, the moon seems like a good option. It’s nearby and could serve as a launchpad for missions to other locations in the solar system. Scientists have long wondered if shadowy crevasses on the lunar surface could be entrances to caverns that could serve as a home for future colonists. New data from Japanese and US researchers indicates such caverns do exist.
The reason grandparents get up at dawn and teenagers stay awake into the wee hours might be related to how ancient humans guarded their settlements, New Scientist reports. For 20 days, anthropologists monitored sleep patterns in the Hadza, hunter-gatherers who live in groups of about 30 individuals in modern-day Tanzania.
The major rift in the Larsen C ice shelf pictured in July 2017.
Climate change has a new poster child: a massive iceberg the size of Delaware -- one of the largest ever recorded – that early this week calved off Larsen C, the largest remaining ice shelf off the Antarctic Peninsula, scientists announced today. Although researchers cannot explicitly connect the calving event to warming air or water, those monitoring the event are now concerned that the entire shelf, after shedding more than 12% of its area, could follow the fate of its more northern peers, Larsen A and B, which collapsed entirely in 1995 and 2002, respectively.
By Paul Voosen