Ryan Kellman

Supplies are running low at Lviv's regional cancer hospital in Ukraine. The patient load has doubled and supplies in Kyiv are inaccessible. But hospital staff choose the duty of care over safety.

Checkpoints have sprung up across Ukraine since Russia's invasion. Men at a checkpoint near Lviv have Molotov cocktails ready. Even hundreds of miles from the battles, the war hangs over everything.

Space and resources are strained in the western city of Lviv. More than 200,000 Ukrainians have temporarily settled in the city while Russian airstrikes continued this past week.

The Hotel Ilan in Poland has a renowned and troubled history for the country's Jewish community. Now, it has found a new purpose helping Ukrainians fleeing the war Russia has wrought on their country.

Many Polish families are offering temporary lodging for Ukrainians who have fled. Some Poles are fostering Ukrainian children who had been living at a home for orphaned or neglected children.

For the first time, the federal government is making a sizeable investment in wildlife road crossings. The goal is to help slow extinctions, and also protect people from animal collisions.

Guyana, one of South America's poorest countries, is under severe threat by rising seas. That had made it a champion of climate action, but it all changed when ExxonMobil found oil off its waters.

Coastal cities need billions of dollars to build defenses against sea level rise. Tensions are rising over where that funding will come from: taxpayers or private companies with waterfront property?

At work every day, Agnes Boisvert attends to ICU patients "gasping for air" and dying from COVID-19. But communicating that harsh reality to her skeptical community has been a challenge.

Wildfires and floods threaten tens of millions of properties in the U.S. But most Americans get little or no information about climate risks when they move.

Celebrations, milestones and daily routines happen whether we're ready or not, and the summer of 2020 was no different. As Americans sought relief in an ongoing pandemic, they got creative.

The unconscious man was a Beatles fan, his sister said. When she couldn't be with him in his final ICU hours she asked Dr. Daniel Colón Hidalgo to play music and say the words she wanted him to hear.

Humans are adaptable, even in pandemic times. As the coronavirus spreads, ordinary citizens in several U.S. cities hit early say they are shifting daily routines to survive and thrive.

Five former NASA astronauts who flew on space missions reflect on some of the awe-inspiring photos from Apollo 11, the first lunar landing flight.

After back-to-back hurricanes and wildfires, insurers are looking for more-resilient construction materials. That means building model homes and then blowing off their roofs or setting them on fire.

When the population of Channel Islands foxes started to vanish in the '90s, no one knew why. Bringing them back from near-extinction has meant unraveling a mystery that started with World War II.

Dessa is a singer and writer from Minneapolis who spent years trying to fall out of love and get over her ex. Nothing seemed to help — until she visited a research lab for a brain scan.

Have you ever wanted to casually point out Cygnus, Leo and Cassiopeia? Just in time for summer, this panoramic video shows you some tricks to help you navigate the night sky.

Unlike humans, bird embryos don't have an oxygen pipeline from their mothers. They develop inside eggs in a nest. Skunk Bear's latest video explains why these pre-hatchlings don't suffocate.

Remember that skeleton hanging in the front of your classroom? In some schools, those were actual human remains. We used science to figure out the story behind one of them.