The risk of failure for New Shepard is comparable to other rockets.
Two spaceflight experts consulted by Live Science said that Jeff Bezos had decent odds of surviving his upcoming ride into space.
SpaceX is gearing up to launch the Starship into orbit, the biggest tesy yet for the ship designed to send humans to Mars and beyond.
The first Blue Origin crew will not wear spacesuits during their 11-minute journey to space and back Tuesday (July 20), according to founder and flight crew member Jeff Bezos.
Salvatore Vitale describes how gravitational-wave signals suggest black holes completely devoured their companion neutron stars.
Recently, an international team of scientists, including researchers at MIT, announced the detection of a new kind of astrophysical system: a collision between a black hole and a neutron star — two of the densest, most exotic objects in the universe.
Scientists have detected signals of colliding black holes, and colliding neutron stars, but had not confirmed a merging of a black hole with a neutron star until now. In a study appearing today in The Astrophysical Journal Letters, the scientists report observing not just one, but two such rare events, each of which gave off gravitational waves that reverberated across a large swath of the universe before reaching Earth in January 2020, just 10 days apart.
SEOUL—The smartphone industry is showing battle scars from the world-wide chip crunch.
Shipments are slowing and customers are seeing their first significant price increases in years. Some companies have had to scale back production and delay new releases. All this has halted what had been a strong start to the year.
Smartphone makers, for much of the year, avoided the parts disruptions faced in the auto, personal computer and home-appliance industries. Phone manufacturers purchase key parts roughly a half a year in advance, but now those stockpiles have shrunk.
TAIPEI —Taiwan Semiconductor Manufacturing Co Ltd (TSMC) signalled on Thursday plans to build new factories in the United States and Japan, riding on a pandemic-led surge in demand for chips that power smartphones, laptops and cars.
TSMC, which posted record quarterly sales and forecast higher revenue for the current quarter, said it will expand production capacity in China and does not rule out the possibility of a “second phase” expansion at its $12 billion factory in Arizona.
The world’s largest contract chipmaker and a major Apple supplier also said it is currently reviewing a plan to set up a speciality technology wafer fabrication plant, or fab, in Japan.
Researchers in Tokyo, Japan, have achieved a data rate of 319 terabits per second (Tbit/s) over a distance of 3001 km (1865 mi).
The canisters can’t stay on the 11-acre storage site on Bailey Peninsula in Wiscasset forever. And the specter of climate change and ocean level rise adds urgency to the hunt for a solution.
That’s a problem because the waste — 1400 spent nuclear fuel rods housed in 60 cement and steel canisters, plus four canisters of irradiated steel removed from the nuclear reactor when it was taken down — is safe for now, but can’t stay in Wiscasset forever.
The situation in Wiscasset underscores a thorny issue facing more than 100 communities across the U.S.: close to a hundred thousand tons of nuclear waste that has no place to go.
Continue reading “Armed guards protect tons of nuclear waste that Maine can’t get rid of” »
NYU Abu Dhabi (NYUAD) researchers have uncovered a code that sets the genome of the liver to account for the remarkable ability for this organ to regenerate. This finding offers new insight into how the specific genes that promote regeneration can be activated when part of the liver is removed. These findings have the potential to inform the development of a new form of regenerative medicine that could help non-regenerative organs regrow in mice and humans.
While other animals can regenerate most organs, humans, mice, and other mammals can only regenerate their liver in response to an injury or when a piece is removed. NYUAD researchers hypothesized that the genes that drive regeneration in the liver would be controlled by a specific code that allows them to be activated in response to injury or resection. They home in on the epigenome, which is the modifications on the DNA that alter the gene expression, as opposed to changing the genetic code itself.
Using a mouse liver model, the team of NYUAD researchers, led by Professor of Biology Kirsten Sadler Edepli, identified the elements of the epigenetic code present in quiescent liver cells—cells that are currently not replicating but have the ability to proliferate under the right conditions—that activate specific genes to regenerate. Genes involved in liver cell proliferation are silenced in livers that are not regenerating, but the surprising finding was that they reside in parts of the genome where most genes are active. The researchers found that these pro-regenerative genes were marked with a specific modification—H3K27me3. During regeneration, H3K27me3 is depleted from these genes, enabling their dynamic expression and driving proliferation.
