A mini fractal universe may lie inside charged black holes (if they exist)

Black holes are perhaps the strangest, least-understood objects in our universe. With so much potential — being linked to everything from wormholes to new baby universes — they have sucked in physicists for decades. 

But as strange as these known objects are, even stranger types of black holes could be dreamed up. In one upside-down, hypothetical version of the universe, a bizarre type of black hole could exist that is stranger than an M.C. Escher sketch. Now, a team of researchers has plunged into the mathematical heart of so-called charged black holes and found a slew of surprises, including an inferno of space-time and an exotic fractal landscape … and potentially more.

Related: 9 ideas about black holes that will blow your mind

Welcome to a holographic superconductor

There are all sorts of potential, hypothetical black holes: ones with or without electric charge, ones spinning or stationary, ones surrounded by

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40% of Amazon could now exist as rainforest or savanna-like ecosystems

Amazon Rainforest
Credit: CC0 Public Domain

A larger part of the Amazon rainforest than previously believed is at risk of crossing a tipping point at which it would become a savanna-type ecosystem, according to new research. The study, based on computer models and data analysis, is published in the journal Nature Communications.

Rainforests are sensitive to changes that affect rainfall for extended periods. If rainfall drops below a certain threshold, areas may shift into a savanna state.

“In around 40 percent of the Amazon, the rainfall is now at a level where the forest could exist in either state—rainforest or savanna, according to our findings,” says lead author Arie Staal, formerly a postdoctoral researcher at the Stockholm Resilience Center and the Copernicus Institute of Utrecht University.

The conclusions are concerning because parts of the Amazon region are currently receiving less rain than they were previously, and this trend is expected to

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Could Life Exist On Mars? Scientists Discover Multiple Underground Salty Ponds


  • Researchers say they have discovered a group of lakes hidden under Mars’ icy surface
  • This follows the detection of another subsurface lake in the same region in 2018
  • The findings revived the debate on whether the Red Planet has alien life or can house microorganisms

A team of Italian scientists discovered a group of three salty ponds beneath Mars’ south pole. The findings revived the debate on whether the Red Planet has alien life or at least can house microorganisms. 

The discovery of these ponds raised the possibility that microbial organisms could survive on Mars but the only hindrance was the high amount of salt concentration, which could be keeping the waters frozen, scientists said in a report published on Sept. 28 in Nature Astronomy.   

The discovery of the salty ponds was significant because their locations were close to another lake discovered in 2018. The largest of them

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A decent budget gaming smartphone that does not need to exist

a hand holding a cell phone: Realme Narzo 20 Pro review: A decent budget gaming smartphone that does not need to exist

© Provided by Firstpost
Realme Narzo 20 Pro review: A decent budget gaming smartphone that does not need to exist

Earlier this year, Realme launched its Narzo 10 series of smartphones and they have been marketed as devices that deliver good mobile gaming performance on a budget. The new Narzo 20 Series is said to offer subtle upgrades over the older series.

Also added in this refresh cycle, is the introduction of the new Narzo 20 Pro. The ‘Pro’ model is supposed to offer the best gaming-grade hardware possible by Realme at budget pricing.

a hand holding a plastic container: Image: Tech2/Sheldon Pinto

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Image: Tech2/Sheldon Pinto

But after using my Realme Narzo 20 Pro review unit for a week, I’m not convinced about it’s “Pro gamer” branding even in the budget smartphone range.

So, let’s take a deep dive into the aspects that make it a gaming smartphone. In short, it’s all about that 90Hz

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