Science

A senior Russian government official on Tuesday formally presented to the United Nations his country’s claim to Arctic Ocean seabed, including an area under the North Pole.Andrew E. Kramer | The New York Times
Brain responses related to tasks requiring sustained attention peaked around the summer solstice and bottomed out around the winter solstice. For tasks requiring working memory, participants' brain functions peaked around the autumn equinox and bottomed out around the spring equinox.Erin Blakemore
The U.S. Environmental Protection Agency will not likely take action to pre-emptively block the massive Pebble Mine proposed in the Bristol Bay watershed, because of delays caused by a series of lawsuits, a top agency official said Monday.Yereth Rosen
Beaufort Sea polar bears equipped in 2014 and 2015 with Fitbit-like devices and neck cameras revealed their daily routines to scientists studying their food needs.Yereth Rosen
When the White House held a summit on earthquake resilience last week, Alaska was conspicuously absent, a sign of the state's struggle to catch up with other earthquake-prone places when it comes to preparedness. Erica Martinson
A robotic "virtual tour guide" made its first trip through the Anchorage Museum Friday, drawing stares from grown-ups and greetings from kids.Mike Dunham
Arctic sea ice was less extensive last month than in any January since satellite records begin in 1979 -- the result of unusual weather patterns in the region.Yereth Rosen
Here are some of the stories from around the Arctic that we've been following this weekAlaska Dispatch News
A new decade-long study reveals that about a quarter of the caribou that encounter the Red Dog Mine road in Northwest Alaska balk at crossing it during their fall migration, causing them to delay their walk south.Yereth Rosen
At 16 years old, sophomore Michael Martinez just landed a big national science award. Already an accomplished athlete and academic, it’s his reverence and compassion for others that stand out most.Jill Burke