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Why the brain gets tired: Researchers uncover the biology of mental fatigue

One popular theory contends that, like physical activity produces metabolic waste, mental effort leads to an accumulation of harmful byproducts. According to this perspective, weariness functions as a warning system to prevent biological harm, much like pain. (Image: Freepik)
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Neanderthals were making fire as early as 400,000 years ago, says new study

Until now, the earliest clear evidence of humans creating fire dates to roughly 50,000 years ago. The new findings push that technological milestone back by hundreds of millennia.(Image: Freepik)
Science

What was the ‘Star of Bethlehem’? Was it a planet or an exploding star in the distant cosmos?

An AI representation of the Magi following the 'Star of Bethlehem' (Created with Gemini).
Science

Chandrayaan-3 detects surprisingly active plasma over the Moon’s south pole

The lander’s data also showed that electrons close to the ground carry surprisingly high energies. Their kinetic temperatures were measured at roughly 3,000 to 8,000 Kelvin, indicating a plasma layer far more energised than previously understood. (Image: ISRO)
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Pompeii study suggests Rome’s iconic concrete was more complex than ancient texts claim

The clue lies in Pompeii itself, where the volcanic disaster preserved an active building site almost perfectly in place. (Image: UNESCO)
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What comets and asteroids reveal about life, death and the unknown Subscriber Only

Halley's comet over 18th century Europe. ( Reimagined with AI)
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NASA scientist says Star of Bethlehem may have been a comet which flew close

Jesus
Science

Hobbits died out due to rainfall decline on Indonesian island of Flores, say scientists

Combined with the volcanic eruption around 50,000 years ago, the hobbits may have faced conditions too harsh to survive. (Image: AI generated)
Science

Different humans? Southern Africa homo sapiens got different genes from 100,000 years isolation, says study

These findings challenge earlier linguistic and archaeological theories suggesting long-term links between eastern, western, and southern Africa. Instead, the new data points to a deep and prolonged genetic separation.(Image for representation AI generated : Freepik)
Science

Could one gene be responsible for mental illness? New study says yes

Mental illnesses were long associated with mutations in multiple genes.
Science

Garlic mouthwash nearly as effective as ones with chlorhexidine, says study

Some trials showed that chlorhexidine better maintained plaque or salivary pH, while others found garlic more effective at specific strengths. (Image: Freepik)
Science

SpaceX sets rocket-reusability record with Falcon-9 booster as it launches 29 more Starlink satellites: VIDEO

SpaceX Falcon9 rocket lifts off with 29 Starlink satellites on Monday (Photo: SpaceX).
Science

Ancient Chinese texts reveal new clues about first recorded solar eclipse

The only reason such a detailed eclipse record survives is that ancient Chinese scholars believed unusual celestial phenomena carried warnings for rulers.(Image credit: National Archives of Japan)
Science

Comet 3I/ATLAS, from beyond the Solar System, found carrying key molecule linked to life

According to the team’s findings, hydrogen cyanide is emerging close to the comet’s rocky nucleus, at rates between 250 and 500 gram per second.(Image for representation: Unsplash)
Science

MIT’s new light-based sensor could put an end to finger pricks for diabetes patients

The first version of the monitor was roughly the size of a desktop printer. Through years of refinement, the team has now reduced it to about the size of a shoebox. (Image: MIT)
Science

Medieval volcanoes may have ignited the Black Death, new research suggests

The plague’s toll varied sharply from region to region. It was shaped not only by biology, but by class, access to resources and the ability of cities to withstand food shortages.(Image for representation: Freepik)
Science

Dying but duty-bound: Fatally ill ants emit alarm scent to shield their nestmates

Once worker ants pick up this scent, they act with remarkable speed. They tear open the infected pupa's cocoon, make small incisions on its surface, and administer formic acid, a potent antimicrobial compound produced naturally by worker ants (Image for representation: Freepik)
Science

In a first, real-time video shows flu virus breaching cell defences ‘like a dance’

Before entering, the flu virus latches onto specific molecules on the cell’s membrane and glides across the surface, almost like surfing, until it reaches an area densely packed with receptors. These clustered sites provide the smoothest entry point. (Image: ETH Zurich)
Science

The last supermoon of 2025: What is it and how to watch?

A supermoon is a bit larger and brighter than the usual full moon.
Science

New study says satellites could disrupt nearly 40% of Hubble photos

Hubble is less vulnerable because it observes a narrower slice of the sky, while more distant observatories like the James Webb Space Telescope remain largely unaffected. (Image: Nature)
Science

Ceramic jug with charred insects, fossilised faeces: Sudan’s site reveals forgotten burial traditions of an African kingdom

Inside the grave, archaeologists discovered two ceramic vessels positioned behind the man's head and an assortment of 82 blue-glazed ceramic disc beads around his neck..(Image for representation: FreePik)
Science

Asteroid Bennu: NASA detects life-linked sugars, mysterious ‘space gum’ and ancient stardust

An artistic visualization of the OSIRIS-REx spacecraft descending towards asteroid Bennu to collect a sample. (NASA/Goddard/University of Arizona)
Science

Can turn pigeons into human-operated drones with neurochip, says Russian company

After pigeons, the company also plans to turn ravens into drones as well.
Science

Ancient Chinese city Shimao sacrificed men at construction sites and women in elite burials, study finds

Human remains unearthed at Shimao reveal gender-specific sacrificial practices. (Express Image/Wikimedia Commons)
Science

The pinky problem: How smartphones are literally reshaping our hands

With smartphones getting heavier every year, more people are likely to experience the issue.
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