Month: February 2024

White Knight Two carries the first SpaceShipTwo during a glide test. (credit: Virgin Galactic)

Virgin Galactic reported an anomaly on its most recent flight, Galactic 06, which took place 12 days ago from a spaceport in New Mexico.

In a statement released Monday, the company said it discovered a dropped pin during a post-flight review of the mission, which carried two pilots and four passengers to an altitude of 55.1 miles (88.7 km).

This alignment pin, according to Virgin Galactic, helps ensure the VSS Unity spaceship is aligned to its carrier aircraft when mating the vehicles on the ground during pre-flight procedures. The company said the alignment pin and a shear pin fitting assembly performed as designed during the mated portion of the flight, and only the alignment pin detached after the spaceship was released from the mothership.

Enlarge / Artist's rendition of two Elden Ring teams, The Medium and The Message, battling it out in a colosseum constructed from micro-transactions and overseen by mystical creatures known as Whales. (credit: Bandai Namco)

To its fans, Elden Ring is a noble struggle, where the effort you put into memorizing boss patterns, improving your build, and fine-tuning your reactions offsets your near-constant deaths in a grim, unforgiving landscape.

To Tencent, it seems, Elden Ring is an opportunity to create another free-to-play game, one flush with in-app purchases and booster packs that may not mesh at all with the game's nature or setting.

Reuters reports that Tencent, the Chinese firm that owns a 16 percent stake in Elden Ring and Dark Souls-maker FromSoftware, has a mobile version of Elden Ring in development. Progress "has been slow," according to three people familiar with the project cited by Reuters. But it will be free-to-play, will have in-app purchases, and may resemble miHoYo's Genshin Impact in its play/pay flow, according to Reuters.

Enlarge / Artist's rendition of two Elden Ring teams, The Medium and The Message, battling it out in a colosseum constructed from micro-transactions and overseen by mystical creatures known as Whales. (credit: Bandai Namco)

To its fans, Elden Ring is a noble struggle, where the effort you put into memorizing boss patterns, improving your build, and fine-tuning your reactions offsets your near-constant deaths in a grim, unforgiving landscape.

To Tencent, it seems, Elden Ring is an opportunity to create another free-to-play game, one flush with in-app purchases and booster packs that may not mesh at all with the game's nature or setting.

Reuters reports that Tencent, the Chinese firm that owns a 16 percent stake in Elden Ring and Dark Souls-maker FromSoftware, has a mobile version of Elden Ring in development. Progress "has been slow," according to three people familiar with the project cited by Reuters. But it will be free-to-play, will have in-app purchases, and may resemble miHoYo's Genshin Impact in its play/pay flow, according to Reuters.

Enlarge (credit: NRAO/AUI/NSF/NASA)

Virtually anything in space could be a potential meal for a supermassive black hole, and that includes entire stars. Even stars much bigger than our Sun can fall victim to the black hole’s extreme gravity and be pulled in toward its gaping maw. It is a terrifying phenomenon, but how often does it really happen?

Tidal disruption events (TDEs)—when the tidal forces of a black hole overwhelm a star’s gravity and tear it apart—are thought to occur once every 10,000 to 100,000 years in any given galaxy. TDEs can be detected by the immense amounts of energy they give off. While observations of them are still pretty rare, an international team of researchers has now discovered a whopping 18 of them that previous searches had missed. Why?

Many TDEs can be found in dusty galaxies. Dust obscures many wavelengths of radiation, from optical to X-rays, but long infrared wavelengths are much less susceptible to scattering and absorption. When the team checked galaxies in the infrared, they found 18 TDEs that had eluded astronomers before.

Enlarge (credit: NRAO/AUI/NSF/NASA)

Virtually anything in space could be a potential meal for a supermassive black hole, and that includes entire stars. Even stars much bigger than our Sun can fall victim to the black hole’s extreme gravity and be pulled in toward its gaping maw. It is a terrifying phenomenon, but how often does it really happen?

Tidal disruption events (TDEs)—when the tidal forces of a black hole overwhelm a star’s gravity and tear it apart—are thought to occur once every 10,000 to 100,000 years in any given galaxy. TDEs can be detected by the immense amounts of energy they give off. While observations of them are still pretty rare, an international team of researchers has now discovered a whopping 18 of them that previous searches had missed. Why?

Many TDEs can be found in dusty galaxies. Dust obscures many wavelengths of radiation, from optical to X-rays, but long infrared wavelengths are much less susceptible to scattering and absorption. When the team checked galaxies in the infrared, they found 18 TDEs that had eluded astronomers before.

Enlarge (credit: Meta / Getty Images)

On Tuesday, Meta announced its plan to start labeling AI-generated images from other companies like OpenAI and Google, as reported by Reuters. The move aims to enhance transparency on platforms such as Facebook, Instagram, and Threads by informing users when the content they see is digitally synthesized media rather than an authentic photo or video.

Coming during a US election year that is expected to be contentious, Meta's decision is part of a larger effort within the tech industry to establish standards for labeling content created using generative AI models, which are capable of producing fake but realistic audio, images, and video from written prompts. (Even non-AI-generated fake content can potentially confuse social media users, as we covered yesterday.)

Meta President of Global Affairs Nick Clegg made the announcement in a blog post on Meta's website. "We’re taking this approach through the next year, during which a number of important elections are taking place around the world," wrote Clegg. "During this time, we expect to learn much more about how people are creating and sharing AI content, what sort of transparency people find most valuable, and how these technologies evolve."

Enlarge (credit: Rost-9D)

Eighty percent of patients with autoimmune diseases are female. These diseases are one of the top 10 leading causes of death for women under 65, and cases are increasing annually worldwide. There is evidence suggesting that it's females’ double complement of X chromosomes that puts them at such heightened risk for autoimmune diseases. Female cells have two X chromosomes, whereas males have one X chromosome and one Y chromosome (at least in mammals).

Shutting down an X

Different animals compensate for this sort of disparity in different ways. Male fly cells churn out twice the amount of the proteins encoded by their single X chromosome, so they end up with the same amount as female cells. Worm hermaphrodite cells reduce production of the proteins encoded by each of their X chromosomes by half, so they end up with the same amount as male cells.

Mammals use X inactivation, in which each female cell shuts off one of its X chromosomes and only uses the other. Which X chromosome is shut off (the paternally inherited one or the maternally inherited one) is random and independent within each cell. So women are all genetic mosaics: Their cells are not all making the same proteins since some of their cells use one of their X chromosomes and some of their cells use the other.