Super-black feathers on these guys are like looking into a dark cave.
Male Birds of Paradise have patches of super-black plumage that absorb 99.95 percent of light. New research identified their feathers' microscopic structures that make them look so very dark.
More and more students at Harvard are examining their admission files to try to understand how they got in. The U.S. government is also plans to examine the files as part of a discrimination case filed by 63 Asian- American groups.
Students and government officials alike hope Harvard's admission files will yield clues about who gets in and why, but a Harvard researcher says their efforts will be in vain.
While California’s shocking and deadly wildfires are a tragedy making headlines, future crises lurk beneath the surface elsewhere.
From California's fires to the Rohingya, headlines can be overwhelming these days. But that doesn't mean we should neglect so-called 'silent crises,' which can quickly erupt into global disasters.
Seeds and cereals are assessed in in laboratories to check the quality of the grains.
African countries, like Nigeria and Ethiopia, increased their food production using a system-wide approach, and not the traditional reliance on isolated projects.
Zimbabweans welcome Emmerson Mnangagwa back from his brief exile in South Africa.
Zimbabwe's new leader needs to shake off his infamous reputation and the suspicion that he is merely another Mugabe in a younger frame.
HIV cells (in red) attacking an organism.
Understanding where there are high numbers of new HIV infections is important to establishing whether interventions are working or not.
Large markets in Africa support the move for more trade in goods, services and assets.
Viewed against the odds of success in getting 55 countries to foster meaningful regional integration, Africa has made commendable progress in crafting its own creative approach.
Somaliland’s shift to use iris recognition in a presidential election stems from distrust in the voting system.
In a remarkable extension of technological leapfrogging, Somaliland will become the first country in the world to use iris recognition in a presidential election.
Robots are advancing exponentially while human learning occurs at a much slower pace.
Jobs are not created or lost because of a single technology, but because of the business models designed to leverage the power of it.
Some tropical diseases can be treated with very inexpensive daily treatments yet remain common.
A cure for many tropical diseases was discovered 30 years ago this month. The drug is donated by its manufacturer. Why are we still dealing with neglected tropical diseases?
Women in crisis settings, such as refugee camps and war zones, are particularly likely to experience sexual assault.
Hollywood's sexual predation scandals are just the tip of the iceberg. One in three women worldwide has been physically or sexually assaulted, and many girls' first sexual experience is forced.
Illustration of hot, dense, expanding cloud of debris stripped from the neutron stars just before they collided.
NASA's Goddard Space Flight Center/CI Lab
Until the recent observation of merging neutron stars, how the heaviest elements come to be was a mystery. But their fingerprints are all over this cosmic collision.
The US compares relatively poorly with equivalent countries when it comes to voter registration.
There are good reasons to be concerned about the procedures used for voter registration in many countries, including many long-established democracies.
Mass evacuations in response to natural disasters like Hurricane Maria are a logistical challenge, but also face psychological barriers to residents being willing and able to leave.
Promoting individual resilience will contribute to reductions in disaster threats for at-risk communities globally.
A product’s calorie label is a common form of nudging behavior.
AP Photo/Jacquelyn Martin
Government initiatives to prod people to make better decisions got a lot of attention after Richard Thaler won a Nobel in economics for his working on nudging.
The community of L'Atelier Paysan is building a wheat thresher.
Chris Giotitsas/University of Leicester
Globally designed products which are then locally manufactured could lead to sustainable and inclusive forms of production and consumption.
The Military Sealift Command hospital ship USNS Comfort traveled to Puerto Rico after Hurricane Maria.
Ernest R. Scott/U.S. Air Force/Handout via Reuters
The military can make a big difference right away but humanitarian deployments should generally be rare and brief.
What’s in the water?
AP Photo/David J. Phillip
Natural disasters expose people to toxic gases, bacterial illness and other serious dangers. How can people maximize their safety as they return home?
Kim Jong Un guides the test-fire of Pukguksong-2 in an undated photo released on Feb. 13, 2017.
Kim Jong Un's regime has already earned millions from the export of arms, missiles, drugs and endangered wildlife products.
Trucks cross the friendship bridge connecting China and North Korea on Sept. 4, 2017. Trump has threatened to cut off trade with countries that deal with North Korea.
AP Photo/Helene Franchineau
The international community has been trying to stop North Korea from developing long-range missiles for decades. So what went wrong?