A sea otter floats in Kachemak Bay, Alaska.
AP Photo/Laura Rauch
Sea otters had been absent from this Alaskan national park for at least 250 years. By marrying math and statistics, scientists map this animal's successful comeback.
Solar panels power a buried electrolytic barrier removing contaminants from groundwater.
Thomas Sale, CSU
Standard methods for removing chemicals from groundwater can be slow and expensive. Now scientists are using electricity to break down long-lived, toxic chemicals called PFASs faster and at less cost.
Alamosa Photovoltaic Plan, south-central Colorado.
Former Colorado Gov. Bill Ritter, now leading a clean energy research center at Colorado State University, explains why clean energy will keep growing despite President Trump's focus on fossil fuel.
The divide is in the data.
American Community Survey (ACS) 2011-2015 5 year estimates, Table S1810
More and more people are talking about the 'rural-urban divide,' but what does that phrase actually mean? We asked experts from around the country to illustrate the gap in graphs and maps.
Maintenance work on Lock and Dam 8 on the Mississippi River near Genoa, Wisconsin.
Patrick Moes, USACE/Flickr
Old and degraded infrastructure costs the United States money and puts lives at risk. A civil engineer describes some innovative ways to measure risks and prioritize repairs.
There are lemons in the stock market too.
Rich Kareckas/AP Photo
As the New York Stock Exchange marks 200 years since its official formation, investors are wondering whether the surging stock market is a 'Trump bump' or more like a lemon.
Prairie potholes in South Dakota are important breeding and feeding areas for many types of birds. Under the Clean Water Rule, farmers cannot fill them in or discharge pollutants into them without a permit.
Laura Hubers, USFWS/Flickr
President Trump signed an executive order to roll back the 2015 Clean Water Rule. Two water experts explain why the rule alarms farmers and ranchers concerned about over-regulation.
Low-wage workers were strong opponents of Puzder’s nomination.
The purpose of the Labor Department is to advocate on behalf of workers. As such, it deserves a qualified leader of competence and commitment.
Well hello, Dolly.
Photo courtesy of The Roslin Institute, The University of Edinburgh.
In 1997, scientists announced they'd created a healthy sheep cloned from another ewe's mammary gland cell. Two decades on, the technique is being refined and applied to new challenges.
Muskoxen group together for security.
How is rapid warming in the Arctic affecting animals that are adapted to cold? A wildlife biologist is using many techniques to find out, including stalking muskoxen in a polar bear costume.
The author, center, and Dr. Anna Conti, left, and student Kelsey Parrish with Conti’s Basset hound, Picasso, who had surgery for cancer. Via Colorado State University.
William Cotton/CSU Photography
Dogs are great companions, and they also are proving to be great research subjects for cancer. Here's how our canine friends are pointing to possible treatments in human cancer.
A mother from suburban Atlanta attending an educational session about concussions with Falcons fullback Patrick DiMarco in 2014.
The Super Bowl is a good time to party and celebrate, but it's also a good time to reflect on where we stand culturally with concussions.
A woman stands near an exhibit of photographs of victims of the Holocaust called the ‘Klarsfeld Pillars’ in New York.
Can the Nazis be forgiven? A rabbi explains why this question needs a more profound examination of some of Judaism's deepest ethical mores and theological beliefs
By unlocking phosphorus from soil, microbes help plants like these sugar beets take it up and boost plant growth.
Researchers are developing biological tools that can boost crop yields to feed a growing world population without harming human health or the environment.
A woman with MS leaves a licensed medical cannabis dispensary in Illinois.
AP Photo/Seth Perlman
There are many anecdotal reports indicating cannabis' beneficial effects for treating MS symptoms, but research with cannabis is difficult to do.
Former UN Secretary-General Ban Ki-moon is guided through Mbalmayo, Cameroon, a town where residents are engaged in projects to further the MDGs.
UN Photo/Eskinder Debebe
The Millennium Development Goals failed in aspects like poverty. Lessons must be learnt to ensure that these mistakes will not be repeated by the Sustainable Development Goals.
Fed Chair Janet Yellen discusses the change in rates.
Alex Brandon/AP Photo
The Fed faces a tough choice on how fast to raise rates in 2017, and Donald Trump may find that it may spoil some of his plans.
A sculpture of a bomb remains by the Black Hole of Los Alamos.
This year saw nuclear weapons tested, stockpiles renewed, and disasters remembered.
People carry photos of soldiers who died during the attack on Pearl Harbor.
AP Photo/Andres Kudacki
The Japanese attack on a US naval base on Dec. 7, 1941 set in motion a series of events that transformed the United States into a global superpower. Will Donald Trump bring that era to an end?
Parent and child image via www.shutterstock.com.
It is time to understand what parental alienating behaviors are so that we don't allow them to be used to hurt others anymore.