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Scientists ‘freeze’ light, and it’s as cool as it sounds – The Times of India

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Scientists ‘freeze’ light, and it’s as cool as it sounds – The Times of India


Italian researchers have pulled off a sci-fi-worthy stunt—freezing light. No, they didn’t trap it in an ice cube, but they did get it to behave in a way never seen before. Their work, published in Nature, proves that light can exist in a bizarre state of matter known as a supersolid—something that’s both solid and fluid at the same time.
“This is just the beginning,” said lead researcher Antonio Gianfante from CNR Nanotec, alongside Davide Nigro from the University of Pavia. And if their excitement is anything to go by, this could be a game-changer in quantum science.
So… how do you freeze light?
Normally, when you freeze something, you just crank down the temperature. But light doesn’t play by those rules. Instead, the scientists used quantum trickery to get photons—the fundamental particles of light—to behave like supersolids.
Here’s how they did it:

  • They built a special semiconductor platform with microscopic ridges.
  • They fired a laser into the structure, generating polariton particles (a hybrid of light and matter).
  • When they packed enough photons into the system, they formed a strange, wave-like structure—the signature of a supersolid.

The result? Light behaving in a way never thought possible.
Why it matters—and why it’s super cool
This breakthrough isn’t just a neat science trick—it could revolutionize quantum computing. Supersolid light might lead to more stable qubits, the backbone of ultra-fast quantum computers. That means more powerful AI, better encryption, and possibly even a step closer to quantum internet.
But that’s not all. This discovery could transform optical technology, helping scientists develop futuristic light-based circuits and new ways to manipulate energy.
For now, Gianfante and his team are busy refining their experiments, but one thing’s certain—this discovery has lit the way for a mind-bending future.





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China set for Shenzhou-20 spaceflight launch

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China set for Shenzhou-20 spaceflight launch


A Chinese national flag and pins showing the Tiangong space station are displayed on a uniform of Chinese astronaut for the upcoming Shenzhou-20 mission during a meeting with media at the Jiuquan Satellite Launch Center in northwest China, April 23, 2025.
| Photo Credit: AP

China is set to launch its Shenzhou-20 mission that will carry three astronauts to the Chinese space station Tiangong at 5.17 p.m. on April 24 local time (0917 GMT), state media said on Wednesday.

The main purpose of the mission is to complete the in-orbit rotation with the Shenzhou-19 crew which is scheduled to return to the Dongfeng landing site on April 29, China Manned Space Agency officials said at a press conference broadcast on CCTV.

The Shenzhou-20 spaceflight from the Jiuquan Satellite Launch Center in northwest China will carry astronauts Chen Dong, Chen Zhongrui and Wang Jie, CCTV said.

The spaceflight will be Chen Dong’s third and the first for the other two – a space engineer and a former air force pilot.

They will conduct space science and application experiments, install a space debris protection device as well as extravehicular payload and equipment, and perform recovery tasks.

The mission will also bring with it zebrafish, planarians and streptomyces as research objects to carry out three life science experiments at the space station.

The crew, scheduled to return to the earth in late October, can expect a resupply mission via the unmanned Tianzhou-9 cargo spacecraft.

The country’s fourth batch of astronauts set to participate in Shenzhou spaceflights is currently in training, featuring for the first time astronauts from China’s special administrative regions of Hong Kong and Macau, as well as Pakistan.

The Hong Kong and Macau astronauts are likely to carry out their first mission as early as 2026, state media reported.

China said the selection of the Pakistani astronauts is underway. Both countries signed an agreement for space cooperation in February.

One of the two Pakistani astronauts that will join the Chinese missions is set to focus on payloads and scientific research aboard China’s space station.



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5 best phones under Rs.15000 to buy in April 2025: Vivo T4x 5G, iQOO Z10x, and more

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5 best phones under Rs.15000 to buy in April 2025: Vivo T4x 5G, iQOO Z10x, and more


Apr 23, 2025 02:56 PM IST

5 best phones under Rs.15000 from Vivo, iQOO, Poco, and other popular mobile brands.

In search of an all-rounder budget smartphone that could manage day-to-day tasks, comes with great camera features, and more? Then we have got you covered. In recent months, smartphone brands including Vivo, iQOO, Poco, and others have introduced feature-rich phones at under Rs.15000 for the budget-conscious buyers. From the latest Vivo T4x 5G to performance-packed Poco M7 Pro, you have several options available. But which phone would be the right one for you? To make your search a little more hassle-free, we have compiled a list of the 5 best phones under Rs.15000, which are new in the market and offer all the latest features. Check the list and see if any model grabs your attention.

Vivo T4x 5G, iQOO Z10x, and other best phones under Rs.15000.(Vivo)

5 best phones under Rs.15000

Vivo T4x 5G: This is one of the newly launched Vivo T series smartphones launched earlier this year. The Vivo T4x 5G features a 6.72-inch IPS LCD display with a 120 Hz refresh rate. The smartphone is powered by the MediaTek Dimensity 7300 processor for powerful performance. It also offers impressive camera features with a 50 MP main camera and a 2MP depth sensor. The Vivo T4x 5G comes at the starting price of just Rs.13999.

iQOO Z10x: Another smartphone to consider under Rs.15000 is the iQOO Z10x, which offers similar features as the Vivo T4x 5G. The smartphone is powered by the MediaTek Dimensity 7300 chipset, and it is backed by a massive 6500 mAh battery for lasting performance. It also features a 6.72-inch IPS LCD display with a 120 Hz refresh rate. The iQOO Z10x comes at a starting price of Rs.13499 in India.

Poco M7 Pro: The next smartphone on the list we have is the Poco M7 Pro. It is powered by the MediaTek Dimensity 7025 Ultra chip paired with up to 8GB RAM. It features a 6.67-inch OLED display with a 120Hz refresh rate. The Poco M7 Pro features a dual camera setup that includes a 50MP camera with 20x digital zoom and a 2MP macro lens. It comes with a starting price of Rs.13999.

Infinix Note 50X: This is also a newly launched smartphone that comes at a very affordable price. The Infinix Note 50X features a 6.67-inch IPS LCD display with a 120Hz refresh rate and HD+ resolution. It is powered by the MediaTek Dimensity 7300 Ultimate processor paired with 8GB RAM, and it also comes with a 5500 mAh battery. The Infinix Note 50X is available at a starting price of Rs.11499.

Realme Narzo 80x 5G: Lastly, we have Realme’s latest Narzo series model, the Realme Narzo 80x 5G, which is powered by MediaTek Dimensity 6400 5G processor paired with 6 GB LPDDR4X RAM and 128 GB UFS 2.2 storage. It comes with a massive 6000mAh battery, providing a lasting performance. This smartphone can be bought at a starting price of Rs.13999.



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Science Quiz | The places where things stay the same

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Science Quiz | The places where things stay the same


Science Quiz | The places where things stay the same

1 / 6 |
This map shows radiation leftover from the Big Bang right after it happened. It depicts how the temperature of the radiation is anisotropic: different at different distances. What’s this radiation called? Credit: NASA



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