The idea behind regenerative medicine is that the patient is both the donor and recipient of healthy tissue grown from stem cells. But sometimes the transplanted cells are rejected. Now we know why.
Academic rigor, journalistic flair
Analysis and Comment
Legal bans and moratoriums on other emerging technologies need not be permanent or absolute, but the more powerful a technology is, the more care it requires to operate safely.
Nuclear threats are serious – but officials, the media and the public keep a close eye on them. There's less attention to the dangers of cyberattacks, which could cripple key utilities.
Linguists have a lot of largely untested theories. Borrowing a tool from ecology, researchers built a model that didn't look for one worldwide explanation.
CRISPR technology could have momentous effects if it's used to edit genes that will be inherited by future generations. Researchers and ethicists continue to weigh appropriate guidelines.
Although the rings of Saturn may look like a permanent fixture of the planet, they are ever-changing. New analyses of the rings reveal how and when they were made, from what and whether they'll last.
Climate change threatens the water supply of nations around the world. But it's difficult to measure whether a region has sufficient water to satisfy the people who live there. Could satellites help?
Armed conflict in Syria has been a disaster for the area's cultural heritage. A displaced archaeologist describes what's being lost.
Some treatments for neurodegenerative diseases involve inserting wires into the brain and zapping certain brain cells with electricity. But what if you could do the same thing using sound waves?
Have you ever walked into a room and realised you can’t remember what you were looking for? We tend to do this more when we are thinking of a few things at once or doing two things at the same time.
High speeds, the threat of dangerous crashes, the excitement of the crowd – and the laws of physics on full display. A physicist explains the science of NASCAR.
If you got too close to a black hole, it would suck you in and you'd never be able to escape, even if you were travelling at the speed of light.
This point of no return is called the event horizon.
Mentally ill, white supremacist video game-playing men are pushing rates of mass homicide ever higher in the US? The real data is more nuanced than common misperceptions suggest.
Almost all drugs are tested in living animals before human clinical trials. But most of the time what works in mice doesn't work in humans. That's why lab-grown human livers may be so valuable.
Space missions are dangerous. But when it comes to long missions, radiation may be the greatest threat to astronauts' health.
On the whole, results from psychology research studies don't support a direct connection between playing violent video games and aggressive behavior.
Landing on the Moon
The first humans to land on the Moon, and the team that got them there, get all the glory. But what about the people who laid the foundation for this effort by mapping the Moon? Who were they?
The technologies behind weather forecasting, GPS and even smartphones can trace their origins to the race to the Moon.
Armstrong always insisted that he said, 'That’s one small step for a man.' Yet everyone omits the 'a' when they repeat the quote. A linguist tries to get to the bottom of what happened.
Air safety
Pilots get lots of assistance from automation as it is. In the future, they'll get even more.
A pilot and researcher knows that airplanes are full of sensors – and finds a way onboard computers can use the data to detect equipment failure and tell pilots what's a real emergency and what's not.
Gene-editing people
Scientists worldwide are calling for a moratorium on gene editing in germline cells. But what is a germline cell? How does it differ from other cells in our body? Why does it matter if we edit them?
Research and Expert Database
Forgetting is beneficial for the human brain. But the internet has made it harder to let go of painful or problematic memories.
For many people, the gentle blinks of fireflies flashing are a favorite part of summer evenings. An entomologist explains some lightning bug basics.
A leader of a new effort to teach cybersecurity to local community organizations and the public at large offers some basic tips to get everyone started.
Indoor plant factories have high energy costs since LEDs replace the sunlight outdoor plants get for free. Scientists found a way to dial back how much light is needed by breaking it into tiny bursts.
Sending autonomous vehicles to the Southern Ocean can be fraught with anxiety, especially if one of them doesn't make radio contact when it's supposed to.
BMIs like the ones Neuralink is working on are already used in laboratories around the world as assistive technologies. But melding your mind with an AI is probably not happening anytime soon.
Each device is complex in its own right, and trying to use them together in many different settings makes things even more complicated.
Advocates and opponents of breaking up Facebook, Google and other technology giants are falling prey to some serious misconceptions.
The UC libraries let their Elsevier journal subscriptions lapse and now the publisher has cut their online access. It's a painful milestone in the fight UC hopes may transform how journals get paid.
Keys to better batteries are found in chemistry and physics, as well as mechanical and electrical engineering.
Tick-borne diseases are becoming more common in the United States. A public health entomologist outlines some of the lesser-known threats ticks pose to human health.
Genetic testing companies are offering tests that analyze the ends of your chromosomes – telomeres – to gauge your health and your real age. But is there scientific evidence to support such tests?
A proposed bill would force tech companies to tell users how much their data is worth. But how can a single number capture data's power to predict your actions or sway your decisions?
A Twitter account used for official purposes is a public forum protected by the First Amendment, a federal appeals court has ruled.
A new array of seismometers provides a glimpse of what's happening deep beneath this geologic fault. New data help explain why the north and south of the region are more seismically active than the middle.
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