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So heres why 24 hours is not enough a day So heres why 24 hours is not enough a day


So here’s why 24 hours is not enough: a day on Earth could last 60 hours, but it used to be even worse



Scientists from the University of Toronto shared the results of an interesting study. A team of astrophysicists has found that the slow and steady lengthening of the Earth’s day, caused by the Moon’s tidal pull, has been halted for more than a billion years.

So here's why 24 hours is not enough: a day on Earth could last 60 hours, but it used to be even worse

Generated by the Midjourney neural network

The study showed that from about two billion years ago to 600 million years ago, atmospheric tides caused by the Sun countered the influence of the Moon, maintaining a constant Earth’s rotation rate and a constant day length of 19.5 hours.

As noted at the university, without this pause of more than a billion years in slowing down the rotation of our planet, the current 24-hour day would have stretched to more than 60 hours.

Based on geological data and using atmospheric research tools, scientists have demonstrated that the “tidal stalemate” between the Sun and the Moon is due to the relationship between the temperature of the atmosphere and the speed of the Earth’s rotation.

When the Moon formed about 4.5 billion years ago, a day on Earth lasted less than 10 hours. But since then, the moon’s gravitational pull has slowed our planet’s rotation, causing the day to get longer. And they continue to lengthen at a rate of about 1.7 milliseconds every century.

One of the authors of the article, Professor Norman Murray, explained that the Sun causes the so-called atmospheric tides, creating a torque. However, instead of slowing down the rotation of the Earth, like the Moon, on the contrary, it speeds it up.

However, the Moon’s impact is about 10 times stronger than that of the Sun, so it “wins the tug of war” and the Earth’s rotation slows down. But the researchers found that these two factors once reached an equilibrium, starting about 2.2 billion years ago. The sun and the moon balanced each other, so the length of the day stopped growing.

The team also noted that climate change with global warming could have intriguing implications for the length of the day in the future – the length of the day could increase markedly.

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Xiaomi Pad 5 and Xiaomi Pad 5 Pro tablets will receive MIUI 15 – this is good news. But there is also bad



Xiaomi Pad 5 and Xiaomi Pad 5 Pro tablets will

The XiaomiUI resource, which tracks the release of firmware for various Xiaomi, Redmi and Poco devices, shared details about software support for the Xiaomi Pad 5 and Xiaomi Pad 5 Pro tablet computers. There are two news here: good and bad.

Xiaomi Pad 5 and Xiaomi Pad 5 Pro tablets will receive MIUI 15 - this is good news.  But there is also bad

The good news is that the devices of the line (and there are three of them – Xiaomi Pad 5, Xiaomi Pad 5 Pro 5G and Xiaomi Pad 5 Pro WiFi) will receive MIUI 15, but the bad news is that this firmware will be based on Android 13, and not Android 14. Thus, the release of MIUI 15 will be the last major software update for these models.

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Traces on Europa: JWST discovered carbon on Jupiter’s moon



Traces on Europa JWST discovered carbon on Jupiters moon

Known for its subsurface ocean of liquid water beneath its icy crust, Europa shares characteristics with Earth. While the presence of solid carbon dioxide on Europa’s surface had been discovered previously, studying the composition of the subsurface ocean remained a challenge for scientists.

The team used the James Webb Space Telescope’s infrared spectrograph to detect carbon dioxide in a region called Tara Regio. Using 320 x 320 kilometer resolution data and studying the area, scientists identified pockets of solid carbon dioxide in the disturbed ice sheet, indicating a connection between the surface and the subsurface ocean.

Jupiter’s icy satellite Europa. Source: NASA/JPL-Caltech/SETI Institute

Dr. Samantha Trumbo, an astronomer at Cornell University, explains that previous observations with the Hubble Space Telescope have already indicated the presence of salt coming out of the ocean in the Tara Regio region. And the discovery of concentrated carbon dioxide further suggests that the carbon most likely does come from Europa’s subglacial ocean. While these findings do not directly indicate the presence of life, the discovery of such a connection is a significant step in understanding Europa’s potential for habitation.

Further detailed analyzes of Europa are planned for the coming years, with NASA’s Europa Clipper mission scheduled to launch next year in 2024, and the European Space Agency’s JUICE spacecraft approaching Europa in 2030. These missions will provide more detailed observations and data to further our understanding of Europa’s composition and how it could potentially support life.

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Satellites of the future: AI autonomy and cloud system will become a reality



Satellites of the future AI autonomy and cloud system will

The principal investigator at the SmartSat Cooperative Research Center (CRC) says future satellites will have the ability to make autonomous decisions, be equipped with artificial intelligence, and be able to operate in their own cloud system.

In June, a research project called SCARLET (SpaceCraft Autonomy Research Laboratory) was launched to implement this idea.

“Australia has enormous expertise in software, technology and artificial intelligence. And now our plan is to transfer this experience to space,” says Zubert, who worked at NASA for almost ten years.

Satellites of the future: AI autonomy and cloud system will become a realityIn the future, remote sensing satellites will become as autonomous as possible to make decisions about orbit adjustments and will be equipped with AI to enable rapid joint work. Source: Mark Garlick/Science Photo Library/Getty

Once they reach orbit, satellites and other spacecraft are relatively simple technology. They can take pictures or collect data, but this information must be transmitted to Earth and it takes time to receive the data. Due to the way data is transmitted to Earth and the constant movement of satellites, it can take up to a day to receive the information you need.

An excellent example is the early detection of fires or smoke. A SmartSat project called Kanyini is exploring this possibility using an artificial intelligence algorithm that analyzes images directly on board the satellite. To test the technology, the developers plan to demonstrate early smoke detection using AI processing on satellite images, where spectral bands are analyzed to distinguish smoke from other signals that may look similar, such as clouds or fog.

The delay in receiving data also affects how satellites are controlled in space. In most cases, satellites in low Earth orbit must be individually tracked and instructed to move out of the way of other satellites or other objects that may pose a potential collision hazard.

It’s fine if we only have a few satellites, but with “constellations” like Starlink that have 42,000 satellites, overpopulation begins. How to control such a “constellation”? To do this, it is necessary to give satellites autonomy.

The last and most complex type of future satellite is the “space cloud” – a network of interconnected satellites in which there is little or no human intervention. In such a space cloud, satellites of various architectures can perform their own specific tasks: take pictures, process data, and a third one can transmit data to Earth. At the same time, they all interact with each other and avoid collisions.

This will significantly speed up the processes of discovering, analyzing and communicating critical information.

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