Scientists in Israel have revealed what they say is the world’s first 3D-printed heart using human tissue. It’s hoped the small heart will pave the way for transplants without donors, when every hospital might have access to 3D organ printers. Faith Lapidus reports. …

The Kenyan capital has experienced a jump in cholera cases, one of the city’s top hospitals said on Tuesday, adding that eight of its own staff had been infected with the disease. Cholera, which is spread by ingesting fecal matter, causes acute watery diarrhea and can kill within hours if …

Congolese President Felix Tshisekedi on Tuesday implored people in areas hit by the nation’s worst-ever Ebola outbreak to accept the disease is real and trust health workers. Mistrust of first responders and widespread misinformation propagated by some community leaders has led many in affected areas of eastern Democratic Republic of …

Sweden’s teenage activist Greta Thunberg choked backed tears on Tuesday as she warned of climate disaster and urged Europeans to vote in next month’s elections to press for decisive action on cutting greenhouse gases. In a speech to a packed committee of the European Parliament, Thunberg, 16, warned time is …

Brandenburg has become the first state in Germany to require all children attending kindergarten to be vaccinated for measles and other infectious diseases as fears spread across Europe about the influence of the anti-vaccination movement and lower immunization rates. A decrease in immunization has led to an increase in measles …

Scientists on Monday provided the most comprehensive look to date at one of the solar system’s most exotic features: prime lakeside property in the northern polar region of Saturn’s moon Titan — if you like lakes made of stuff like liquid methane. Using data obtained by NASA’s Cassini spacecraft before …

Whooping cranes, common ravens and peregrine falcons are among the celebrities of the sky in the eyes of Americans, even those who’ve never laid eyes them. The ruffed grouse or purple martin? They’re like friends you might chat with. The wrentit and the Abert’s towhee are like the neighbors you …

The number of measles cases worldwide nearly quadrupled in the first three months of the year compared to last year, the World Health Organization reported Monday. The United Nations agency, citing preliminary data, said that more than 112,000 cases of the preventable but highly contagious disease have been reported across …

As recently as a half-century ago, young American students would spend many lessons writing curved loops and diagonal lines, as they learned how to write in cursive. Over the years, though, computer keyboards and voice to text programs have replaced pens and pencils, and made handwriting — especially cursive — …

Just 50 years ago, the Aral Sea, which straddles the nations of Kazakhstan and Uzbekistan, was the fourth largest lake in the world. But today it is mostly desert, and environmental groups are trying to save what is left. VOA’S Kevin Enochs reports. …

Experts meeting in emergency session at the World Health Organization agree the Ebola outbreak in eastern Democratic Republic of Congo does not constitute a public health emergency of international concern. The experts say the Ebola outbreak does not pose a global threat since the deadly virus has not crossed any …

For months, New York City has been fighting a measles outbreak in the Orthodox Jewish community. The mayor finally declared a public health emergency April 9 because measles continue to spread among unvaccinated children. Parents who refuse to vaccinate now face heavy fines. Brooklyn is a borough in New York City …

New York City has declared a public health emergency amid an alarming spike in the number of measles cases among largely unvaccinated children. VOA’s Carol Pearson looks at why these parents are reluctant to vaccinate in the face of a serious measles outbreak. …

The team behind the Israeli spacecraft that crashed into the moon moments before touchdown was working Friday to try and piece together what derailed the ambitious mission, which sought to make history as the first privately funded lunar landing.  SpaceIL, the start-up that worked for over eight years to get …

A top Red Cross official says he’s “more concerned than I have ever been” about the possible regional spread of the Ebola virus in Congo after a recent spike in cases. Emanuele Capobianco spoke by phone ahead of a key World Health Organization meeting in Geneva later Friday about whether …

As scientists get better at sifting through our past, more and more variations of human beings are turning up in archaeological digs. In the early 2000s there was the discovery in Indonesia of a tiny hominid called Flores man, this week an archaeologist says he has found the remains of …

An Israeli spacecraft lost contact with Earth moments before it was to land on the moon and crashed late Thursday, failing in an ambitious attempt to make history as the first privately funded lunar mission.  The spacecraft lost communication with ground control as it was making its final descent to …

Scientists have been monitoring what black holes do to the space around them for decades. Their immense gravity warps time and space in a way that Albert Einstein predicted and that researchers can see. But they’ve never seen a black hole until now. VOA’s Kevin Enochs reports. …

Deadly floods in the U.S. that bear the fingerprints of climate change are prompting an exodus of workers from the Midwest, the world’s biggest professional social network, LinkedIn, said Wednesday. The website, on which millions of U.S. workers maintain profiles, said data showed a spike in members changing their work …

Fossil bones and teeth found in the Philippines have revealed a long-lost cousin of modern people, which evidently lived around the time our own species was spreading from Africa to occupy the rest of the world.    It’s yet another reminder that, although Homo sapiens is now the only surviving …

A new report finds gender inequality strips women of their ability to control their sexual and reproductive options and limits their right to choose when and if they wish to start a family. The United Nations Population Fund released this year’s State of the World Population report titled “Unfinished Business: …

Using eight radio telescopes literally spanning the globe, scientists have taken the first-ever photograph of a black hole. The supermassive black hole is at the center of a huge galaxy called M-87, which is 55 million light-years from Earth. The picture, the result of decades of work by the Event …

NASA is using its satellites to solve humanitarian challenges in some of the most fragile places on earth under a landmark partnership with aid agency Mercy Corps. The U.S. National Aeronautics and Space Administration will use its wealth of data to help communities at risk from climate change and natural …

The deadly Ebola outbreak in the Democratic Republic of Congo is far from contained, U.S. Agency for International Development Administrator Mark Green said on Tuesday. “In the last week we have seen a number of signs that the outbreak is far from contained. There’s a long way to go,” the …

Near the northern Greek island of Alonissos lies a remarkable ancient shipwreck: the remains of a massive cargo ship that changed archaeologists’ understanding of shipbuilding in antiquity.   Now this spectacular find is to become the first ancient shipwreck to be made accessible to the public in Greece, including to …