science

A Chinese scientist's claims that he created the world's first gene-edited babies is a "deeply disturbing" and "irresponsible" violation of international scientific norms, according to a formal conclusion issued Thursday by organizers of the Second International Summit on Human Genome Editing in Hong Kong.

But the summit rejected calls for a blanket moratorium on such research, saying that the work could eventually lead to new ways to prevent a long list of serious genetic diseases.

After a cold snap across much of the U.S. last week, some are reviving the debunked talking point that cold weather disproves climate change. President Trump tweeted Wednesday, “Brutal and Extended Cold Blast could shatter ALL RECORDS – Whatever happened to Global Warming?”

Walk into a U.S. supermarket on any given day and you're pretty much guaranteed to find apples.

In our globalized economy, we expect nothing less than to be able to consume our favorite fruits and vegetables all year, even when they're not in season locally. Placing strawberries from Mexico in your shopping cart in February and stocking up on kiwis from Chile in July – that's pretty much normal, even expected.

Editor's note: This story was updated at 11:52 a.m. to add information about an ethics committee investigation into the DNA-editing experiment.

For the first time, a scientist claims to have used a powerful new gene-editing technique to create genetically modified human babies.

Updated Nov. 26 at 3:12 p.m. ET

NASA's InSight probe landed successfully on Mars Monday shortly before 3 p.m. ET.

Two tiny spacecraft that flew with the lander to Mars were able to relay telemetry from the probe as it descended to the surface. As a result, mission managers knew immediately that the landing had worked. Unsurprisingly, the control room at the Jet Propulsion Laboratory in Pasadena, Calif., erupted in cheers.

If you hold your nose and take a sip of coffee, mostly what you'll taste is a bitter liquid. Much of the gustatory pleasure we take from coffee comes from its aroma.

But a new study suggests people's sensitivity to that bitter taste plays a role in how much coffee they drink. And though it seems counterintuitive, the study shows that the more sensitive you are to the bitter taste of coffee, the more of it you tend to drink.

Updated at 8:40 a.m. ET, Friday

The vote to redefine the kilogram was, as expected, unanimous, with representatives from more than 50 countries saying "yes" or "oui" at the historic meeting in Versailles, France.

Bill Phillips, a Nobel laureate from the National Institute of Standards and Technology in Maryland, told the assembled delegates that basing the kilogram's official definition on a hunk of metal held in a vault was "a situation that is clearly intolerable."

When looking up at the stars, it's hard not to wonder what else — or even who else — could be out there. The resilience of franchises like Star Trek in pop culture prove we've always believed in the possibility of life beyond our own solar system. But it wasn't until about a decade ago that we were able to locate and identify those distant planets of our dreams.

An iceberg recently spotted by NASA scientists looks like it was carefully cut into a perfect rectangle, and it's getting a lot of attention because of those unexpected angles and straight lines.

It looks nothing like the craggy, uneven mass that sank the Titanic, perhaps the most famous iceberg ever.

Even before Florence Nightingale advised that hospitals be designed to let daylight in, people observed that sunshine helps keep you healthy. But there was not much research to explain why that's the case, especially inside buildings.

The oldest evidence of life on Earth probably isn't found in some 3.7 billion-year-old rocks found in Greenland, despite what a group of scientists claimed a couple of years ago.

That's according to a new analysis, published Wednesday in the journal Nature by a different team of experts.

Maria Gloria Dominguez-Bello had just moved to New York when Hurricane Sandy blew in from the Atlantic and buffeted the East Coast.

She heard that the labs at New York University, where she was working — and its freezer — were losing power. So she ran to the failing freezer, took the microbiota samples she'd gathered as a researcher in Puerto Rico over the past 14 years and stored them elsewhere.

Microbiota are the bacteria colonizing the human body — the gut, skin, mouth, and so on — that often help regulate your health. Researchers call them "beneficial germs."

Updated 9:25 a.m. ET

American Frances H. Arnold has won half of the 2018 Nobel Prize in chemistry for her work in changing how chemists produce new enzymes, sharing the prize with another American, George Smith, and Sir Gregory Winter of the U.K. for research that has led to new pharmaceuticals and cancer treatments.

Editor's note: This story was updated at 2:45 p.m. to include more information.

James P. Allison and Tasuku Honjo will be awarded the 2018 Nobel Prize in Physiology or Medicine for discoveries which led to the development of a revolution in cancer treatment — therapies that work by harnessing the body's own immune system.