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Ever since then, researchers have marveled at the bedbug’s resilience. No matter what kind of chemical insecticide we throw at it, they manage to survive. This is due in large part to its development of insecticide resistance. Recent research conducted by Hidemasa Bono at Hiroshima University found that a series of genetic mutations explain the bedbug’s resistance to insecticides.

To figure that out, Bono and his team took a peek at the genome of an insecticide-resistant bedbug. They then compared it to bedbug samples collected in 2010 from a hotel in Hiroshima, along with wild bedbugs dating back to the 1950s. They used a technique called long-read sequencing to create nearly free and nearly error-free genomic maps to compare the various bedbugs across time. This allowed them to see several different mutations across the three types of bedbugs.

Continue reading “Bedbugs Are Stronger Than Ever and Scientists Just Found Out Why” »

Dolapo Subair

They dropped a camera to one of the deepest depths in the ocean, and what they saw may be disturbing to some.

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The first dark comet—a celestial object that looks like an asteroid but moves through space like a comet—was reported less than two years ago. Soon after, another six were found. In a new paper, researchers announce the discovery of seven more, doubling the number of known dark comets, and find that they fall into two distinct populations: larger ones that reside in the outer solar system and smaller ones in the inner solar system, with various other traits that set them apart.

The findings were published on Monday, Dec. 9, in the Proceedings of the National Academy of Sciences.

Scientists got their first inkling that dark comets exist when they noted in a March 2016 study that the trajectory of “asteroid” 2003 RM had moved ever so slightly from its expected orbit. That deviation couldn’t be explained by the typical accelerations of asteroids, like the small acceleration known as the Yarkovsky effect.

It could have huge consequences 😰 Read more.

NASA has been monitoring an anomaly in Earth’s magnetic field, growing 40,000 miles above the planet’s surface between South America and southwest Africa.

This behavior highlights a critical issue: even systems designed for seemingly harmless tasks can produce unforeseen outcomes when granted enough autonomy.

The challenges posed by AI today are reminiscent of automated trading systems in financial markets. Algorithms designed to optimize trades have triggered flash crashes —sudden, extreme market volatility occurring within seconds, too fast for human intervention to correct.

Similarly, modern AI systems are built to optimize tasks at extraordinary speeds. Without robust controls, their growing complexity and autonomy could unleash consequences no one anticipated—just as automated trading once disrupted financial markets.

Using the X-shooter instrument at ESO’s Very Large Telescope (VLT), German astronomers have detected three new pre-white dwarfs, which turned out to be strongly hydrogen-deficient. The finding was reported in a research paper published December 20 on the pre-print server arXiv.

White dwarfs (WDs) are stellar cores left behind after a star has exhausted its nuclear fuel. Due to their high gravity, they are known to have atmospheres of either pure hydrogen or pure helium. However, a small fraction of WDs shows traces of heavier elements.

Although WDs have a relatively small size, comparable to that of the Earth, they are a few million times more massive than our planet. Pre-white dwarfs (PWDs) are a few times larger and slated to shrink in size, eventually becoming WDs within about a few thousand years.

Rous sarcoma virus, a pioneering discovery in cancer research, sheds light on how certain viruses can trigger uncontrolled cell growth, a hallmark of cancer.

Virtually all of Puerto Rico woke up on New Year’s Eve to find there was no electricity, as a power outage hit the U.S. territory.