Genetic material collected at a Chinese market near where the first human cases of COVID-19 were identified show raccoon dog DNA comingled with the virus, adding evidence to the theory that the virus originated from animals, not from a lab, international experts say.

"These data do not provide a definitive answer to how the pandemic began, but every piece of data is important to moving us closer to that answer," World Health Organization Director-General Tedros Adhanom Ghebreyesus said Friday.

The second astronaut from the United Arab Emirates is still adjusting to life off the planet, after rocketing to the International Space Station last week.

"I'm still coping. I'm still learning," Sultan al-Neyadi said, but added that he hopes to improve in the coming days.

A new crew arrived at the International Space Station on Friday for a six-month mission, after overcoming trouble with one of the capsule's docking hooks.

The SpaceX capsule and its four astronauts had to wait 65 feet (20 meters) from the orbiting lab, as flight controllers in California scrambled to come up with a software fix.

SpaceX launched four astronauts to the International Space Station for NASA on Thursday, including the first person from the Arab world going up for an extended monthslong stay.

The Falcon rocket bolted from Kennedy Space Center shortly after midnight, illuminating the night sky as it headed up the East Coast.

A crucial question has eluded governments and health agencies around the world since the COVID-19 pandemic began: Did the virus originate in animals or leak from a Chinese lab?

Now, the U.S. Department of Energy has assessed with "low confidence" in that it began with a lab leak, according to a person familiar with the report who wasn't authorized to discuss it. The report has not been made public.

Russia launched a rescue ship on Friday for two cosmonauts and a NASA astronaut whose original ride home sprang a dangerous leak while parked at the International Space Station.

The new, empty Soyuz capsule should arrive at the orbiting lab on Sunday.

Conspiracy theories about a U.S. research station have resurged, with social media users falsely blaming it for the Turkey-Syria earthquakes, following debunked claims it causes weather disasters and spreads the coronavirus.

A major 7.8 magnitude earthquake followed by another strong quake devastated wide swaths of Turkey and Syria early Monday, killing thousands of people.

Here's what to know:

Ayahuasca is a psychedelic tea whose roots go back hundreds of years to ceremonial use by Indigenous groups in the Amazon region.

It's widely used in South America where it is legal in several countries, including Peru and Brazil. But in the United States, it remains illegal because the brew contains the psychedelic N, N-Dimethyltryptamine or DMT.

A fishing community in southern Brazil has an unusual ally: wild dolphins.

Accounts of people and dolphins working together to hunt fish go back millennia, from the time of the Roman Empire near what is now southern France to 19th century Queensland, Australia. But while historians and storytellers have recounted the human point of view, it's been impossible to confirm how the dolphins have benefited — or if they've been taken advantage of — before sonar and underwater microphones could track them underwater.