Toggle light / dark theme

In the last decade, lab-grown meat has emerged a sustainable alternative to traditional livestock methods. Livestock strain Earth’s land resources and account for about 14.5 percent of global greenhouse gas emissions. But while scientists can grow thin sheets of cow meat and scrape it together to form a patty, people eat with their eyes as much as their mouths. For lab-grown meat to replace a fresh steak, it needs to look like a steak.

Growing lab-based meat into 3D structures is difficult because it needs constant delivery of oxygen and nutrients. In living organisms, vascular systems fill that need. Researchers at Boston College previously showed that skeletonized spinach leaves, stripped of everything but their veiny, oxygen-dispersing, vascular system, can support patches of heart muscle cells. Now, they show that lab-grown meat can grow on skeletonized spinach, an essential step to growing steak-shaped meat in the lab.

Jared Isaacman’s privately funded trip to Earth’s orbit will raise money for St. Jude’s.


Inspiration4 will be motivated in part by Isaacman’s effort to raise more than $200 million for St. Jude Children’s Research Hospital, a pediatric cancer research hospital that does not charge the families of children for their treatment. Isaacman pledged $100 million out of his own pocket.

“I’ve been very lucky in life; you really don’t get to a position that I’m fortunate enough to be in without the ball bouncing your way a couple times,” said Isaacman in an interview with Space.com. “These families [at St. Jude] were dealt horrible hands. They’re going through what no one should ever have to go through. It’s immense heartache, and the sad part is many of those kids will not grow up to have any of the experiences that I’ve been lucky enough to have in life. We’ve just got to do something about that.”

For millennia, humans in the high latitudes have been enthralled by auroras—the northern and southern lights. Yet even after all that time, it appears the ethereal, dancing ribbons of light above Earth still hold some secrets.

In a new study, physicists led by the University of Iowa report a new feature to Earth’s atmospheric light show. Examining video taken nearly two decades ago, the researchers describe multiple instances where a section of the diffuse —the faint, background-like glow accompanying the more vivid light commonly associated with auroras—goes dark, as if scrubbed by a giant blotter. Then, after a short period of time, the blacked-out section suddenly reappears.

The researchers say the behavior, which they call “diffuse auroral erasers,” has never been mentioned in the . The findings appear in the Journal of Geophysical Research Space Physics.

Top U.S. fuel pipeline operator Colonial Pipeline has shut its entire network, the source of nearly half of the U.S. East Coast’s fuel supply, after a cyber attack that the company said was caused by ransomware.

The shutdown has raised fears of a price spike at the gas pumps ahead of peak demand summer driving season if it persists, and has drawn attention to how critical U.S. energy infrastructure is vulnerable to hackers.

Colonial transports 2.5 million barrels per day of gasoline, diesel, jet fuel and other refined products through 5500 miles (8850 km) of pipelines linking refiners on the Gulf Coast to the eastern and southern United States.

Virgin Orbit, the sister company of Virgin Galactic, is gearing up for its next space launch in June when it will put six satellites in orbit.

The mission, named “Tubular Bells, Part One” after the first album Virgin Records released in 1973, will launch satellites for the U.S. Department of Defense, Poland’s SatRevolution and the Royal Netherlands Air Force.

A modified Boeing 747–400 jet will carry the LauncherOne rocket to high altitude, then release the 70-foot, 57000-pound rocket into the air.

Findings that could help further understand how living tissue reacts to radiation exposure.

Energy flows through a system of atoms or molecules by a series of processes such as transfers, emissions, or decay. You can visualize some of these details like passing a ball (the energy) to someone else (another particle), except the pass happens quicker than the blink of an eye, so fast that the details about the exchange are not well understood. Imagine the same exchange happening in a busy room, with others bumping into you and generally complicating and slowing the pass. Then, imagine how much faster the exchange would be if everyone stepped back and created a safe bubble for the pass to happen unhindered.

An international collaboration of scientists, including UConn Professor of Physics Nora Berrah and post-doctoral researcher and lead author Aaron LaForge, witnessed this bubble-mediated enhancement between two helium atoms using ultrafast lasers. Their results are now published in Physical Review X.

Most deaths associated with lung cancer are due to the migration of cancer cells to other organs—a process called metastasis. Although cancer therapies have advanced, treatments for lung cancer metastasis continue to lag.

The root of red ginseng (Panax ginseng) has been used as food and herbal medicine for thousands of years globally and especially in Korea and China, owing to its medicinal properties. However, the composition and activities of red ginseng vary depending on the processing method. Recent studies have shown the efficacy of red ginseng against lung cancer metastasis.

A new study conducted by scientists at the Korea Institute of Science and Technology (KIST) reports the successful use of a microwave processing method for ginseng that increases trace amounts of Rk1 and Rg5 ginsenosides—a class of natural steroid sugars found almost exclusively in plants of the genus Panax —that effectively inhibit the metastasis of lung cancer.

After doubling its sample size, the largest study of genetic data from autistic people has identified 255 genes associated with the condition, an increase of more than 40 genes since the researchers’ 2019 update; 71 of the genes rise above a stringent statistical bar the team had not previously used. The new analysis also adds data from people with developmental delay or schizophrenia and considers multiple types of mutations.

“It’s a really significant step forward in what we do,” said Kyle Satterstrom, a computational biologist in Mark Daly’s lab at the Broad Institute in Cambridge, Massachusetts. Satterstrom presented the findings virtually on Tuesday at the 2021 International Society for Autism Research annual meeting. (Links to abstracts may work only for registered conference attendees.)

The team’s previous analyses used data from the Autism Sequencing Consortium, which enrolls families through their doctors. The researchers mainly scoured the genetic data to find rare, non-inherited mutations linked to autism.