A repeating radio signal from deep space has scientists puzzled, because they can't fully explain what's emitting it. Their working hypothesis, as detailed in a study published in the journal Nature Astronomy, is that the source is likely a kind of neutron star called a pulsar that fires off radio signals as it rotates on its axis.

Scientists Intrigued by Signal From Space Repeating Every Hour

Editor's note: This article was originally published on November 17, 2022. It has since been updated. Black holes have long fascinated both scientists and the general public. While scientists grapple with finding new information about these regions in our universe, we all are forever fascinated by this concept of science. In a revolutionary experiment, scientists have successfully created a black hole replica, potentially answering several key questions about this cosmic phenomenon, according to Science Alert.

Scientists created a black hole in a unique lab experiment, then it started to glow

Indy100

NASA scientists have just identified mysterious shapes flying above the Earth but, don’t worry, this doesn’t mean that aliens are about to strike.Using an imaging instrument called the Global-scale Observations of the Limb and Disk (GOLD), the experts uncovered strange X and C shapes, which have been cropping up in surprising places at surprising times.The researchers found the structures dancing around the ionosphere – the area where Earth’s atmosphere meets space – and say that the discovery could help improve radio communications and space weather forecasts.The ionosphere – which sits around 50 to 400 miles (roughly 80 to 644 kilometres)...

NASA scientists discover strange structures hovering above Earth

LiveScience

The James Webb Space Telescope has caught a snapshot of two massive asteroids colliding in a nearby star system — and it could teach us about how common solar systems like our own are.

James Webb telescope reveals 'cataclysmic' asteroid collision in nearby star system

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Fareeha Arshad

Astrophysicists led by the University of Cambridge have detected the earliest black hole ever observed, emitting light from its host galaxy just 400 million years after the Big Bang. The black hole in the galaxy GN-z11 is exceptionally massive, about 1.6 million times the mass of the Sun. This finding supports the direct collapse model of supermassive black hole formation in the early Universe, challenging the conventional view of slow accretion from massive stars.

Discovery of Ancient Black Hole Challenges Conventional Cosmic Models

A peculiar star known as J0931+0038 in the Milky Way has caught the attention of astronomers due to its unique chemical composition, indicating it originated from a rare explosion of a massive star billions of years ago during the cosmic dawn. Typically, stars produce elements through nucleosynthesis, but this star's chemical makeup suggests it derived from a supernova explosion of a massive star that should have collapsed into a black hole.

Astronomers Puzzled by Rare Star Formed from Unusual Supernova

ScienceAlert


In December 2019, astronomers were stunned when the core of a relatively sedate galaxy 300 million light-years away abruptly lit up like a Christmas tree, shining more brightly than we've ever seen it.



					
			

A giant  black hole that kicked into gear and started guzzling material from the space around it is the best explanation for such a dim galaxy that suddenly blazes with light. Other events, like exploding stars, can cause a distant galaxy to brighten – but, typically, those events fade over time.
SDSS1335+0728, as the galaxy is known, did not do the typical thing. In fact, it has grown...

Astronomers Witness Monster Black Hole Awaken And Begin Feeding Frenzy

From "runaway" black holes shooting across the cosmos to secret planets in our own backyard, space is overrun with mysterious objects that scientists are clamoring to explain. Here are five of the strangest sights in the universe, as well as their possible origins.

5 space discoveries that scientists are struggling to explain

A giant explosion that shook part of Russia more than a century ago has never been categorically explained.And yet, some scientists believe that it could have been the result of a very close encounter with a mysterious form of black hole. The extraordinary blast occurred just after 7am on 30 June, 1908, above the Podkamennaya Tunguska river in what is now modern-day Siberia.Its force was estimated to have been equivalent to as much as 15 megatons of TNT, making it 1,000 times more powerful than the atomic bomb dropped on Hiroshima and Nagasaki in 1945, as the Encyclopaedia Britannica notes.The...

Atom bomb-sized blast in Russia may have been caused by a black hole

The Fireball collaboration used CERN’s HiRadMat facility to produce an analog of the jets of matter and antimatter that stream out of some black holes and neutron stars. At CERN’s HiRadMat facility, researchers have created a high-density electron-positron plasma beam that mimics astrophysical jets from black holes, providing new insights into space phenomena. These experiments help validate theoretical models with real-world data, paving the way for deeper understanding of cosmic events like black hole jets.

Matter/Antimatter Black Hole Jets Recreated in CERN’s Laboratory

J. Souza

A fight between passengers marred the final night of a Carnival Cruise Line sailing on June 6th. The incident, which unfolded in the Lido Deck dining room onboard the Carnival Paradise, involved a group of women and resulted in thrown chairs and plates.

Cruise Ship Fight Near Buffet Captured on Camera, Passengers Banned for Life

Business Insider

NASA plans to launch a mini satellite into Earth's orbit that could revolutionize astronomy as we know it.

NASA is putting an 'artificial star' in orbit around Earth

Have you ever pondered how migratory birds figure out their way to warmer climates? Well, a team of researchers from the Netherlands Institute of Ecology (NIOO-KNAW) and the Swiss Ornithological Institute (Vogelwarte Sempach) have finally cracked a 70-year-old mystery revolving around starlings and the way they navigate. Starling and their...

Starlings are independent navigators, not copycats

This planet is orbiting a small star approximately 40 light-years away. Two teams of scientists discovered a potentially habitable planet orbiting a small star approximately 40 light-years away. The exoplanet is called Gliese 12b, and its size is a bit smaller than Earth but larger than Venus. Orbiting a cool...

Scientists Have Found an Earth-Sized Planet that’s Potentially Habitable

An asteroid around the size of the Washington Monument is set to flash by Earth this month. The so-named 2024 MK asteroid will come even closer than the orbit of the moon on June 29 and is estimated to be around 394 to 885 feet in diameter. The asteroid could pass some 50,000 miles closer than the moon, according to NASA's Center for Near Earth Object Studies.

NASA warns Washington Monument-sized asteroid will come closer to Earth than the Moon

IFLScience

It has been a busy week for potentially hazardous asteroids.

NASA Discovers Potentially Hazardous Asteroid Has A Moonlet During Close Encounter

Picture a grand cosmic ballroom, where celestial dancers twirl and sway to the rhythm of an ancient melody. In this mesmerizing waltz, matter takes the lead, guiding spacetime through elegant curves and graceful bends. Spacetime, in turn, whispers to matter, dictating its path through the universe’s vast expanse. This...

Gravity's enigma: Cosmic dance of matter and spacetime in our elegant universe

Two million years ago, an encounter with a cold cloud of gas and dust could have caused our planet's "protective giant bubble" to draw back, potentially cooling our planet, new research claims.

An encounter with 'something outside of the solar system' may have triggered an ice age on Earth

NASA’s James Webb Space Telescope has revealed mysterious objects in the early universe that challenge current theories of galaxy and supermassive black hole evolution. These objects contain old stars and massive black holes, much larger than expected, suggesting a rapid and unconventional form of early galaxy formation. The findings highlight significant discrepancies with existing models, and the objects’ unique properties indicate a complex early cosmic history.

Scientists Baffled: Webb Uncovers Ancient Galaxies That Defy Explanation

Scientists at NASA collected radar images as two asteroids made recent close passes of Earth, and the data revealed that one of the space rocks has a tiny moon.

New images reveal an asteroid that just whizzed by Earth has an unexpected companion

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Black hole disks are unexpectedly 'fluffy' as they grow and evolve

The thought of black holes can send shivers down our spines. The idea of a region in space where gravity is so strong that nothing (not...

Black hole disks are unexpectedly 'fluffy' as they grow and evolve

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