Science + Technology

Archaeologists in Israel have discovered the oldest fossil of a modern human outside Africa. The fossil suggests that humans first migrated out of the continent much earlier than previously believed.

Randall Curren is a professor of philosophy at the University of Rochester. His work spans sustainability studies, the philosophy and psychology of well-being, social and political philosophy, and ancient Greek philosophy. You can follow his work here.

Chinese researchers have finally figured out how to clone a primate, using the same technique Scottish researchers devised to clone the first mammal, Dolly the sheep, in the mid-1990s.

Research teams spent a decade trying to reach the moon and win the $30 million Google Lunar X Prize. But organizers are declaring an end to this leg of the space race, saying none of the teams are able to launch a lunar rover project by the March 31, 2018, deadline.

"This literal 'moonshot' is hard," X Prize's Peter Diamandis and Marcus Shingles said in a statement about the contest that began in 2007. They said that while they had expected a winner by now, the grand prize "will go unclaimed."

A short drive north of Fairbanks, Alaska, there's a red shed stuck right up against a hillside. The shed looks unremarkable, except for the door. It looks like a door to a walk-in freezer, with thick insulation and a heavy latch. Whatever is behind that door needs to stay very cold.

"Are you ready to go inside?" asks Dr. Thomas Douglas, a geochemist at the U.S. Army Corps of Engineers.

Mount Mayon, the Philippines' most active volcano, erupted for eight minutes on Monday afternoon, spewing a 3-mile-tall column of debris and volcanic gas. It exploded at least five more times Monday night and Tuesday morning.

I'm old enough to have grown up in a household with a single rotary telephone.

I imagine that most children would not know what to do with one today. Conversely, my grandparents, if I could bring them back to life, would have had no idea of what to do with a smartphone.

Technology changes the way we live — and it also changes us.

"Trauma" is a heavy and haunting word. For many Americans, it conjures images of troops returning from Iraq and Afghanistan. The emotional toll from those wars made headlines and forced a healthcare reckoning at the Department of Veterans Affairs.

Dr. Nadine Burke Harris, a pediatrician, would like to see a similar reckoning in every doctor's office, health clinic and classroom in America — for children who have experienced trauma much closer to home.

Updated at 10 a.m. ET

Michigan residents got a surprise Tuesday night when a meteor punched through the clouds with an explosive flash. It was powerful enough to register on seismic instruments.

Scientists say that images from Mars show large slopes of ice — and provide a hint at how they were formed. One likely theory involves snowfall on the Red Planet.

The researchers say that the size and accessibility of the ice sheets, as well as the fact that they are made of relatively clean water, could be an important resource for astronauts who might travel to Mars in the future.

Even very young babies can tell the difference between someone who's helpful and someone who's mean — and lab studies show that babies consistently prefer the helpers.

But one of humans' closest relatives — the bonobo — makes a different choice, preferring to cozy up to the meanies.

That's according to experiments described Thursday in the journal Current Biology, by scientists who wanted to explore the evolutionary origins of humans' unusually cooperative behavior.

Science can just knock me to the floor.

Sometimes it's the revelation of some previously unseen phenomena. Other times, it's a new way to see something you thought you already understood. Then there are the times when connections pop up between things you never imagined to be connected.

And sometimes, it's all of them at once.

A warming planet due to human-induced climate change is likely to contribute to an increase in volcanic activity, according to

It was hardly a footnote in most national stories on the issue, but Congress' passage of the Republican tax bill will be a chapter in Alaska's history books. The law opens a part of the Arctic National Wildlife Refuge to oil development, ending an epic, nearly four-decade battle.

For years, environmental groups, the oil industry, Alaska Native communities and the state's political leaders have debated the potential consequences of oil development in ANWR — on species like caribou and polar bears, on Alaska's oil-dependent economy, on nearby villages and on the climate.

An international team of astronomers has concluded that when it comes to theories about colliding neutron stars, Einstein got it right. Everybody else, not so much.

A neutron star is what's left when a star burns out and collapses in on itself, leaving a small, incredibly dense ball.

When Ayanna Howard was a little girl, her favorite TV show was the Bionic Woman.

In my house, we celebrate Christmas.

In preparation, we selected a beautiful, aromatic Fraser fir tree for our den. This means that our five indoor rescued cats get to enjoy their annual holiday enrichment activity — climbing partway up through the branches, batting down ornaments, and attempting to shred the wrapping and ribbon from presents under the tree.

Some chaos definitely ensues, but it's fun to see the cats so excited — and we've never yet had an outright tree crash like this one.

We're on the Bering Land Bridge, where woolly mammoths roamed 20,000 years ago. Today, the land is covered in bright green grass and miniature shrubs.

But there's something strange — bright white objects jutting out of the ground.

As I walk a little closer with archaeologist Owen Mason, he tells me what they are.

"Right there, that's a whale shoulder blade," Mason says, pointing to a bone about the size of a German Shepherd.

Certain pivotal events in history seem to open up a schism in time, separating what really happened from countless other "what ifs."

There is a vast trove of Hollywood gold 160 feet below Kansas City, Missouri.

It’s inside a underground warehouse, where several hundred thousand film canisters line the towering shelves at Underground Vaults & Storage.

“As far as the older titles, ‘Gone with the Wind,’ ‘Voyage to the Bottom of the Sea,’ ” says manager Brian Corwin.

Trial and error, experimentation, the understanding that some questions have complex answers or no answers at all, the notion that failure teaches, the acceptance that mistakes can actually guide you in the right direction, persistence in the face of difficulty: These are some of the everyday components of scientific research, accumulated wisdom that can serve us well in many walks of life — from how to face challenges as individuals to running corporations.

Mayors from across the country say a lack of leadership in Washington on climate change is prompting them to take action themselves.

More than 50 mayors from cities large and small wrapped up a climate change summit in Chicago on Wednesday, at which they signed a formal agreement to reduce greenhouse gas emissions in their cities. They also agreed to meet goals similar to those in the Paris climate accord, which President Trump announced earlier this year the U.S. would withdraw from.

Scientists have just discovered a supermassive black hole that existed surprisingly early in the history of the universe, and the puzzling find is shedding new light on when the first stars blinked on.

Astronomers spotted the black hole, the most distant ever found, sitting inside a bright object so far away that the light had been traveling for 13 billion years before reaching Earth.

President Trump has dramatically scaled back two national land monuments in Utah. The administration and Republican leaders in Utah say taking the land out of the hands of the federal government will allow the state to decide what to do with it, including protecting some areas and possibly allowing development in others.

A chance encounter at the Massachusetts Institute of Technology between an alum from Kentucky and an MIT researcher has led to a unique partnership. It’s focused on the future of the work in a part of the country where the coal industry has been hemorrhaging jobs.

In one of the most famous scenes from the Harry Potter series, a group of kids, new to the Hogwarts School of Witchcraft and Wizardry, line up before an old and crumpled wizard's hat. It is the sorting hat. The hat will tell them which house they'll belong to during their Hogwarts education.

There is something deeply appealing about the sorting hat. It is wise. It seems to know people better than they know themselves.