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Sagittarius A*, the Milky Way’s central supermassive black hole, is spinning at high speed—and oddly, not in alignment w...
12/23/2025

Sagittarius A*, the Milky Way’s central supermassive black hole, is spinning at high speed—and oddly, not in alignment with our galaxy’s rotation.

Now, astronomers may finally know why. Using data from the Event Horizon Telescope, scientists have found compelling evidence that Sagittarius A* is the result of a colossal cosmic merger. Billions of years ago, the Milky Way likely collided with another galaxy, Gaia-Enceladus, whose central black hole merged with our own. This violent encounter may have tilted the black hole’s spin axis and amplified its rotation rate.

Spanning 23.5 million kilometers (14.6 million miles) wide and weighing 4 million times the mass of our Sun, Sagittarius A* accounts for just 0.0003% of the Milky Way’s mass—but it plays a critical role in shaping our galaxy. This new study, published in Nature Astronomy, supports the idea that supermassive black holes can grow not just by feeding on gas and dust, but by consuming other black holes during galactic mergers.

The upcoming LISA mission, set to launch in 2035, could soon detect gravitational waves from such ancient mergers, offering direct evidence of these cataclysmic cosmic unions. The discovery adds a vital piece to the puzzle of how galaxies—and their black holes—evolve.

📄 RESEARCH PAPER
📌 Yihan Wang & Bing Zhang, "Evidence of a past merger of the Galactic Centre black hole", Nature Astronomy (2024)

Scientists in Russia have achieved an astonishing breakthrough by reviving microscopic animals known as rotifers that we...
12/21/2025

Scientists in Russia have achieved an astonishing breakthrough by reviving microscopic animals known as rotifers that were frozen in Siberian permafrost for around twenty four thousand years. These tiny creatures survived the Ice Age by entering cryptobiosis, a state where all biological activity shuts down, allowing them to endure extreme cold for millennia.

When researchers gently thawed them in laboratory conditions, the rotifers didn’t just come back to life, they began reproducing almost immediately. The discovery shows that complex life can pause for thousands of years and resume normally, offering powerful insights into long term biological preservation and the future of life science.

🌀 For the first time in history, scientists have confirmed the existence of a lone black hole—one that roams the galaxy ...
12/21/2025

🌀 For the first time in history, scientists have confirmed the existence of a lone black hole—one that roams the galaxy without a companion star.

This elusive object, drifting through the constellation Sagittarius, was first suspected in 2022, but only now—thanks to new data from the Hubble Space Telescope—can astronomers say with confidence: it is indeed a black hole.

Most black holes we know of reveal themselves by interacting with a visible star. But this one is different. It’s invisible and alone, betraying its presence only through its gravitational effects. In July 2011, it passed in front of a distant star, magnifying and bending the star’s light in a process known as gravitational microlensing. That brief, subtle shift was enough to spark over a decade of observation.

After analyzing data from Hubble (2011–2022) and Gaia, astronomers determined that the object weighs about seven times the mass of our Sun, ruling out a neutron star and sealing its identity as a black hole. It's located just 5,000 light-years away—a dark wanderer in our own galactic backyard.

And this might only be the beginning. When NASA launches the Nancy Grace Roman Space Telescope in 2027, it could uncover dozens more of these silent giants, roaming unseen across the Milky Way.

📄 RESEARCH PAPER

📌 K.C. Sahu et al. OGLE-2011-BLG-0462: An isolated stellar-mass black hole confirmed using new HST astrometry and updated photometry. The Astrophysical Journal. Vol. 983, 2025

In the brutal reality of the tropical wetlands, where prey can be scarce for months at a time, the crocodile has mastere...
12/19/2025

In the brutal reality of the tropical wetlands, where prey can be scarce for months at a time, the crocodile has mastered the art of patience through a remarkable biological adaptation. Unlike mammals that must eat regularly to maintain their internal temperature, crocodiles utilize their massive tails as specialized adipose storage units. Research indicates that these reptiles can store up to 60% of their total food energy as fat within the thick, muscular base of their tails. This serves as a vital energy reserve, effectively acting as a biological "slow cooker" that sustains the animal when hunting is impossible.
This tail-based energy system, combined with an exceptionally low metabolic rate, allows crocodiles to be the ultimate survivors. Large individuals have been documented surviving for over a year, and sometimes up to two years, between meals. During these periods, they enter a state of extreme conservation, moving as little as possible to stretch their fat reserves to the limit. This efficiency is so profound that a crocodile can consume half its own body weight in a single sitting and then "shut down" its system until the next opportunistic hunt. Far from just a rudder for swimming, the tail is a survival tool that has allowed crocodiles to persist as top predators for over 200 million years, navigating environmental extremes that would see other species vanish.

Astronomers have just uncovered a mind-blowing discovery A planet twice the size of Earth may be entirely covered by a v...
12/19/2025

Astronomers have just uncovered a mind-blowing discovery A planet twice the size of Earth may be entirely covered by a vast ocean This new world is unlike anything we have seen before and could hold secrets about life beyond our planet

Located in a distant star system this planet, often referred to as an “ocean world,” has sparked excitement among scientists and space enthusiasts around the world Its size suggests it has enough gravity to hold a thick atmosphere and maintain liquid water on its surface Water is one of the key ingredients for life and this discovery raises the tantalizing possibility that life could exist there

Using advanced telescopes and cutting-edge observation techniques researchers detected signals that indicate the presence of a large body of liquid water beneath the planet’s surface The idea of an entire ocean covering a planet bigger than Earth is both thrilling and mysterious It challenges our understanding of planetary formation and could help us learn how common water worlds are in our galaxy

For space lovers and explorers this is a moment of wonder A new frontier has opened where imagination meets science This ocean planet reminds us that the universe is vast full of surprises and that our search for extraterrestrial life may just have found a promising new candidate

Keep watching the skies because discoveries like this are reshaping our understanding of the cosmos and the endless possibilities it holds

In just a few hours, Earth will reach the closest point to one of the rarest visitors ever observed—interstellar comet 3...
12/19/2025

In just a few hours, Earth will reach the closest point to one of the rarest visitors ever observed—interstellar comet 3I/ATLAS. Traveling through our solar system at an extraordinary speed, this object did not form around our Sun.

It originated in another star system and has been passing through interstellar space for millions of years before briefly crossing our path.

Since its discovery six months ago, 3I/ATLAS has refused to behave like an ordinary comet. While it shows signs of activity, its motion and structure don’t fit neatly into existing comet models. Subtle changes in its speed, unusual emission signatures, and its overall behavior have pushed astronomers to rethink how comets form and evolve beyond our solar system.

Its closest approach—about 170 million miles from Earth—is completely safe, but scientifically invaluable. As it passes by, telescopes across the world will collect a surge of high-precision data, offering a rare opportunity to study material shaped around a different star. Every measurement adds a new piece to a puzzle that spans far beyond our own planetary neighborhood.

Events like this remind us that the solar system is not an isolated island. It exists within a dynamic galaxy where material can travel between stars. 3I/ATLAS will soon fade into deep space again, but the insights it leaves behind may reshape how we understand comets—and planetary systems—across the Milky Way.

Before dinosaurs, before birds, the skies belonged to dragons—Meganeura, a giant insect with a wingspan over 70 cm, that...
12/19/2025

Before dinosaurs, before birds, the skies belonged to dragons—Meganeura, a giant insect with a wingspan over 70 cm, that hunted over Carboniferous swamps 300 million years ago.

In an atmosphere rich with 35% oxygen—far higher than today—these aerial predators grew to sizes impossible for modern insects. With huge eyes and sharp mandibles, they snatched smaller arthropods from the air, ruling an ancient world of giant ferns, early amphibians, and towering millipedes.

Meganeura was not a true dragonfly, but a member of the extinct Meganisoptera, a lineage of flying giants that vanished as oxygen levels dropped and ecosystems changed. Their fossils are ghosts of a lost atmospheric age.

Strange fact: Some Meganeura fossils preserve such fine detail that scientists can see the vein patterns in their wings—delicate structures that supported one of the largest flying insects ever.

A whisper from the age of oxygen, written on wings of stone. 🦋🌿

They just printed a beating human heart from a patient's own cells. Wait until you hear what happened next. 🫀Scientists ...
12/13/2025

They just printed a beating human heart from a patient's own cells. Wait until you hear what happened next. 🫀

Scientists at Tel Aviv University have done something that sounds impossible. They took fat cells from a patient, transformed them into stem cells, and used a 3D printer to create a living, functioning heart. It beats. It pumps. It's alive. And this changes everything we thought we knew about organ transplants.

A growing body of medical research is challenging long-held beliefs about cholesterol. Recent long-term population studi...
12/13/2025

A growing body of medical research is challenging long-held beliefs about cholesterol. Recent long-term population studies reveal a surprising trend: individuals with naturally higher cholesterol levels often show greater longevity and reduced rates of certain cancers. Instead of being a simple “villain,” cholesterol appears to play complex roles in hormone regulation, immune function, cell repair, and brain health.
Scientists now suggest that cholesterol may act as a protective biological resource in aging, helping maintain cell stability and supporting the body’s defenses against chronic illness. Some researchers even argue that aggressive cholesterol-lowering treatments may not benefit everyone equally — particularly older adults whose bodies rely on cholesterol for essential metabolic functions.
This shift in understanding has sparked debates within the medical community. Experts emphasize that LDL, HDL, and triglycerides must be evaluated together, along with diet, inflammation, genetics, and lifestyle. The new data does not dismiss heart disease risks but invites a more nuanced view of cholesterol’s role beyond cardiovascular health.
As evidence grows, health professionals may eventually adopt more individualized cholesterol guidelines, focusing not only on lowering numbers but on understanding each person’s biological needs.

Humans have a powerful muscle pump in their calves—often called the body’s “second heart”—that helps push blood back up ...
12/13/2025

Humans have a powerful muscle pump in their calves—often called the body’s “second heart”—that helps push blood back up toward the chest against gravity. Each step squeezes deep veins, preventing blood from pooling in the legs and reducing the risk of clots. This mechanism is essential for circulation, especially during long periods of sitting or standing. Strong calf muscles not only aid movement but also play a vital role in keeping the cardiovascular system healthy.

🚨 It’s happening again! 👇🏻A large and active sunspot has fired a cloud of charged particles toward Earth, setting up con...
12/07/2025

🚨 It’s happening again! 👇🏻

A large and active sunspot has fired a cloud of charged particles toward Earth, setting up conditions for a moderate geomagnetic storm. A G2 storm watch is in effect for 3–4 December (UTC) after a coronal mass ejection (CME) blasted out of solar Region 4299. The eruption was tied to an intense X1.9-class solar flare that peaked at 02:49 UTC on 1 December—one of the stronger flares of this solar cycle.

Solar observatories captured the flare and CME in X-ray and coronagraph data, helping scientists measure its power and trajectory. Based on those observations, NOAA’s Space Weather Prediction Center issued the G2 alert. Storms of this level can trigger vivid auroras and cause minor disruptions to satellites and electrical infrastructure.

Voyager 1's trajectory correction maneuver (TCM) thrusters were not used for 37 years, from November 1980 until they wer...
12/07/2025

Voyager 1's trajectory correction maneuver (TCM) thrusters were not used for 37 years, from November 1980 until they were successfully fired again in late 2017.

Today, Voyager 1 is the farthest human-made object in history, over 22 billion kilometers from Earth, still traveling outward through interstellar space. Its faint radio whispers take more than 40 hours for a round trip.

All of that — from a spacecraft built with 1970s technology.
Proof that when human curiosity sets a target, distance becomes just a detail.

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