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Exploring The Multiverse

The universe is beyond immense, and yet it might be nothing more than a tiny dot beside the rest of reality.

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Credits:
Exploring The Multiverse.
Originally aired as Episode 462b; September 1, 2024
Produced, Written & Narrated by: Isaac Arthur.
Editors: Thomas Owens.
Select imagery/video supplied by Getty Images.
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator.
Stellardrone, \

The Dark Side of AI Hacking — Could Online Images Hijack Your Computer?

Explore how malicious images and pixel manipulation can hack AI agents, hijack systems, and bypass security. Learn risks, real-world cases, and protection strategies. AI hacking, malicious images, pixel manipulation attack, AI security, Trojan images, adversarial AI attacks, AI vulnerabilities, AI cybersecurity, image-based hacking, hijacking AI agents

Demonstration of a next-generation wavefront actuator for gravitational-wave detection

In the last decade, the Laser Interferometer Gravitational-Wave Observatory (LIGO) and the European Virgo Observatory have opened a new observational window on the universe. These cavity-enhanced laser interferometers sense spacetime strain, generated by distant astrophysical events such as black hole mergers, to an RMS fluctuation of a few parts in 1021 over a multi-kilometer baseline. Optical advancements in laser wavefront control are key to advancing the sensitivity of current detectors and enabling a planned next-generation 40 km gravitational wave observatory in the United States, known as Cosmic Explorer. We report an experimental demonstration of a wavefront control technique for gravitational-wave detection, obtained from testing a full-scale prototype on a 40 kg LIGO mirror. Our results indicate that this design can meet the unique and challenging requirements of providing higher-order precision wavefront corrections at megawatt laser power levels while introducing extremely low effective displacement noise into the interferometer. This technology will have a direct and enabling impact on the observational science, expanding the gravitational-wave detection horizon to very early times in the universe, before the first stars formed, and enabling new tests of gravity, cosmology, and dense nuclear matter.

Venus flytrap’s touch response traced to specialized ion channel in sensory hairs

Plants lack nerves, yet they can sensitively detect touch from other organisms. In the Venus flytrap, highly sensitive sensory hairs act as tactile sensing organs; when touched twice in quick succession, they initiate the closure cascade that captures prey. However, the molecular identity of the touch sensor has remained unclear.

HIV mystery uncovered: How the virus reprograms host cells to create perfect hiding places

For over three decades, HIV has played an elaborate game of hide-and-seek with researchers, making treating—and possibly even curing—the disease a seemingly insurmountable obstacle to achieve.

But scientists at Case Western Reserve University have made a breakthrough discovery that could fundamentally change strategies for treating HIV.

The team identified for the first time how HIV enters a in infected cells that allows the virus to “hide” from the immune system and current treatments.

Enlarged cancer cell nuclei may limit spread rather than signal severity

In tissue biopsies, cancer cells are frequently observed to have nuclei (the cell’s genetic information storage) that are larger than normal. Until now, this was considered a sign that the cancer was worsening, but the exact cause and effect had not been elucidated.

In a new study, a KAIST research team has found that cancer cell nuclear hypertrophy is not a cause of malignancy but a temporary response to replication stress, and that it can, in fact, suppress metastasis. This discovery is expected to lead to the development of new diagnostic and therapeutic strategies for cancer and metastasis inhibition.

The research team, led by Professor Joon Kim of the Graduate School of Medical Science and Engineering, in collaboration with the research teams of Professor Ji Hun Kim and Professor You-Me Kim, confirmed that DNA replication stress (the burden and error signal that occurs when a cell copies its DNA), which is common in , causes the “actin” protein inside the nucleus to aggregate (polymerize), which is the direct cause of the nuclear enlargement.

51% of Japanese game makers use generative AI

51% of Japanese developers use generative AI in game development.

In new research from Tokyo Game Show organizer Computer Entertainment Supplier’s Association (CESA), as reported by The Nikkei, of the 54 Japanese companies polled between June and July 2025, over half used genAI. Primarily, it’s used to assist with generating visual assets, images, and character art, as well as story generation, in-game text, and support with programming.

The 2025 CESA Video Game Industry Report also revealed that 32% of respondents were also using AI to develop in-house development engines.

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