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Video of the day: SpaceX Starlink satellites burning up in the atmosphere

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The other day it became known that 40 Starlink satellites from the last batch were disabled due to a geomagnetic storm. The company said they would all burn up in the atmosphere. And today we can see how it happened.

Video of the day: SpaceX Starlink satellites burning up in the atmosphere

We do not know how many satellites burned down at those moments that are captured on video – multiple “meteors” are only a consequence of the destruction of the satellites. But the source says that we are talking about two satellites.

It is worth noting here that the source performed astrometric calculations to make sure that we are really talking about Starlink satellites, and not about any other artificial or natural objects. In particular, there was an assumption that the stage of the Falcon 9 rocket, launched back in 2017, staged the night show.

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The Mars helicopter Ingenuity failed to communicate with the Perseverance rover for the first time. The connection has already been restored.

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The Mars helicopter Ingenuity failed to communicate with the Perseverance

For the first time in more than a year, the Ingenuity Mars helicopter failed to communicate with the Perseverance rover at the scheduled time. The connection was finally restored.

The Mars helicopter Ingenuity failed to communicate with the Perseverance rover for the first time.  The connection has already been restored.

The communication failure took place on May 3, NASA talked about it a few days later, but many media then missed this news. Helicopter data indicates that the crash was the result of the helicopter going into low power mode, possibly due to a seasonal increase in airborne dust.

Dust reduces the amount of sunlight reaching the helicopter’s solar panel, which reduces Ingenuity’s ability to recharge its six lithium-ion batteries. When the battery state of charge fell below the low limit, one of the FPGAs that manages Ingenuity’s operating state was turned off, turning other avionics on and off as needed to maximize power savings. It also manages the heaters that keep the helicopter surviving the cold Martian nights, maintains accurate time, and controls when the helicopter must wake up for communication with Perseverance.

Accordingly, when during the next Martian night the FPGA turned off, the onboard clock of the helicopter, which indicates the time when communication with Perseverance occurs, was reset. Ingenuity’s heaters, critical to keeping electronics and other components operating at temperature, have shut down. When the sun rose the next morning and the solar panel began charging the batteries, the clock on the helicopter was out of sync with the clock on board the rover. In fact, when Ingenuity thought it was time to contact Perseverance, the rover’s base station wasn’t listening because it shouldn’t be at the time.

To make sure Perseverance heard the call, Perseverance mission controllers ordered the rover to spend nearly all of Sol 429 (May 5) listening to the helicopter signal. It arrived at 11:45 local Martian time. Data transmitted was limited to deliberately conserve battery life, but critical health and safety data for the helicopter was nominal. Radio communication between Ingenuity and Perseverance was stable, the spacecraft temperature was within expected limits, the solar panel was recharging the battery at the rate expected for this season, and the battery was healthy at 41% full charge.

We have always known that the Martian winter and dust storm season will bring new challenges to Ingenuity, such as a colder sun, more atmospheric dust, and more frequent dust storms. Every flight and every mile of distance traveled 30 sols over our original mission pushed the spacecraft to its limits every sol on Mars.

The Ingenuity and Perseverance teams have come up with a plan that they hope will make a difference. Their goal is to help the helicopter’s battery build up enough charge over the next few sols to keep it running all the spacecraft’s essential systems on a cold Martian night. The new commands are lowering the temperature at which the helicopter turns on its heaters from -15 to -40 degrees Celsius. The helicopter then quickly shuts down instead of wasting battery power on the heaters. The team hopes that this strategy will allow the battery to retain all the charge accumulated during the day.

At the moment, no new NASA publications regarding Ingenuity have appeared.

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Phones

Periscope telephoto, 8 GB of RAM and a huge screen in a smartphone for $218. Presented Hisense H60

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Periscope telephoto 8 GB of RAM and a huge screen

Hisense has released a very unusual smartphone H60. Unusual it is not at all in design, but in terms of price and parameters.

Periscope telephoto, 8 GB of RAM and a huge screen in a smartphone for $218.  Presented Hisense H60

Judging by the available data, in China the novelty will cost only about 218 dollars. At the same time, for example, there is a periscope telephoto. This 8 MP camera provides 5x optical zoom and 50x digital zoom. There is also a 48MP main camera and a depth sensor. That is, unlike some even flagship smartphones, there is no width in the set, but there is a telephoto lens, and also a periscope one.

The H60 also received 8 GB of RAM and 128 GB of flash memory, which at $218 is a very good deal. One of the secrets of the low price is the platform. This is Unisoc T7520 (Recently, some sources of the Unisoc platform are called Ziguang, but Ziguang is simply part of the Tsinghua Unigroup holding).

Periscope telephoto, 8 GB of RAM and a huge screen in a smartphone for $218.  Presented Hisense H60

The Unisoc T7520 isn’t a top platform, but it’s built on a 6nm process and offers 5G support, four Cortex-A76 cores, four Cortex-A55 cores, a Mali-G57 GPU, and Snapdragon 750G-level performance.

Returning to the smartphone, it is also equipped with a 5000 mAh battery with support for 18-watt charging and a 6.81-inch 60-Hz screen.

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Software

The latest update of Windows 11 and Windows 10 caused crashes

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The latest update of Windows 11 and Windows 10 caused

A few days ago, Microsoft began rolling out the May Cumulative Update, which is now available for all supported versions of the Windows operating system.

It turned out that this update brings with it not only fixes, but also problems that are expressed in the disruption of the functioning of some services. The software giant has acknowledged the problem.

Reportedly, these are KB5013943 for Windows 11 (build 22000.675) and KB5013942 for Windows 10 (builds 19043.1706, 19042.1706 and 19041.1706). Installing the cumulative update may cause client and server OS authentication failures in a number of services, including Network Policy Server, Routing and Remote Access Service, Extensible Authentication Protocol, and Protected Extensible Authentication Protocol.

The latest update of Windows 11 and Windows 10 caused crashes

According to the source, the issue is related to how the domain controller handles mapping certificates to users’ computer accounts. The issue does not affect non-domain-controlled client and server OS versions.

Microsoft is currently working on a patch that will fix the bugs mentioned. When exactly it will become available to users is still unknown. Users who encounter issues after installing the cumulative update are advised to manually map certificates to accounts in Active Directory.

It is reported that the RTM version of Windows 11 22H2 (Sun Valley 2) will be released on May 24th.

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