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A spaceship the size of a car is running low on fuel and hurtling toward Earth

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A spaceship the size of a car is running low on fuel and hurtling toward Earth

The European spacecraft “Aeolus” is running out of fuel, and is the first satellite to directly observe wind features from space, pulling the Earth’s atmosphere and its 1360-kg combined gravity toward our planet at high speed. .

In the original plan, Elus was expected to return to Earth naturally, but the European Space Agency (ESA) has come up with another idea: an assisted return – the first of its kind.

To reduce the risk of space debris, rockets and satellites are designed to safely re-enter Earth’s atmosphere after their missions are completed, TheNextWeb reported.

A rapid descent creates so much heat and friction that small objects often disintegrate in the sky – but larger objects remain intact. To minimize the risk to human life, these entities must land safely in unpopulated areas.

Under current regulations, a spacecraft must burn completely or undergo a controlled re-entry procedure, but Aeolus was designed before those rules came into effect.

The car-sized spacecraft Aeolus mission was planned in the late 1990s, when there were no re-entry guidelines. At the time, Aeolus was designed to land on a part of Earth that was completely random.

In line with today’s requirements, ESA changed the plan. Mission control uses the last drops of satellite fuel to return the satellite to Earth.

“This re-entry attempt violates mission safety regulations that were planned and designed in the late 1990s,” Tim Florer, head of the European Space Agency’s Space Debris Office, said in a blog post.

“Once ESA and industry partners find that they can already minimize risks to life or infrastructure, the wheels are in motion, things should go as planned, and comply with current safety regulations for Aeolus missions.” Today.”

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Aeolus will first descend from its operational altitude of 320 km to lower orbit, and when it reaches an altitude of 280 km – a process that could take weeks – the European Space Agency will attempt the first return maneuvers.

Further maneuvers will bring the satellite up to 150 km above Earth. Final critical commands will guide the satellite to an altitude of 80 km, where most of the satellite will burn up in the atmosphere, although some debris may still be present. Reach the surface of our planet.

To avoid life-threatening debris, the European Space Agency aims to re-enter the ocean far from Earth.

If the maneuvers are successful, the European Space Agency expects to complete the flight in late July or early August. However, there is no guarantee that the first attempt at assisted re-entry will be successful, and if the plan is abandoned, Aeolus’ natural appearance will continue. But if the mission is accomplished, it will set a new benchmark. For satellite re-entry and space debris mitigation.

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A “strange” exoplanet will hide its all-iron composition past its demise

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A “strange” exoplanet will hide its all-iron composition past its demise

An international team of astronomers has revealed that a strange exoplanet, located 31 light-years from Earth in the Virgo galaxy, is denser than previously thought and a solid ball of metal.

Known as Gliese 367 b, or Tahay, the planet orbits a nearby red dwarf star, and little was known about it until scientists recently decided to delve deeper into the mystery of its mineral composition.

The study, published in The Astrophysical Journal Letters, provides precise measurements of the planet’s mass and radius.

Taihai consists mostly of rock and iron and is about the same size as Earth, allowing it to be captured by current techniques.

“You can compare GJ 367 b to an Earth-like planet whose lithosphere has been stripped away,” lead author Elisa Coffo of the University of Turin told ScienceAlert.

Tahai was first discovered in 2021 by NASA’s Transiting Exoplanet Survey (TESS) Space Telescope system as it orbited its small, faint red dwarf star. Scientists at the time declared it to be a planet with a very short orbit, as it orbited its host star in 7.7 hours, a mysterious and poorly studied category of exoplanets.

Scientists at the time pointed out that Gliese 367 b is a rocky world about 70% the size of Earth and 55% the mass, making it one of the lightest exoplanets known.

But the latest research showed something that shocked scientists, the results found that Dahai is denser than what the 2021 study found.

GJ 367 b is defined as an ultradense exoplanet. According to the new data, the exoplanet has a radius of 70% that of Earth instead of the previously estimated 72%, and its mass is 63% that of Earth instead of 55%.

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The team concluded that Dahai’s density is twice that of Earth. The secret is that Taihai may have experienced a cataclysmic event in the past that was mostly made of metal.

According to the study authors, this information can be proven by combining new measurements from TESS and the HARPS spectrometer, which is attached to the European Southern Observatory (ESO) telescope.

Joao suggested that this celestial body had a formation process similar to Earth’s, and that it appeared to have “a dense core composed mainly of iron, surrounded by a silicate-rich mantle”.

Hypotheses about its origin suggest that “a cataclysmic event could tear apart the rocky mantle and empty the planet’s dense core,” the astronomer said. This may have happened due to collisions between GJ 367 b and other protoplanets, stripping off its outer layer. Joao proposed a third theory, in which the planet is believed to have been “born in an iron-rich region of the protoplanetary disk”.

Source: The Sun

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NASA announced the arrival of the largest and first space sample from the asteroid “Bennu” to Earth

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NASA announced the arrival of the largest and first space sample from the asteroid “Bennu” to Earth


A sh a

Sunday, September 24, 2023 at 11:15 PM

Today, Sunday, the US space agency (NASA) announced the return of a capsule from the OSIRIS-REx mission.(OSIRIS-REx), to Earth with samples of asteroid debris on board; To open the way for scientists to explore the path of evolution of the solar system.

NASA indicated – in a tweet via its official account on the “X” website (formerly Twitter) – that the OSIRIS-REx prototype capsule landed at the Test and Training Field in Utah at exactly 10:52 AM (Eastern US Time). , after traveling 6.21 billion kilometers through space.



NASA noted that the OSIRIS-REx mission was the first US mission to return samples from space to Earth and was the largest space sample ever brought to our planet’s surface, weighing a quarter of a kilogram. This model opens the door to exploring the history and origins of our solar system.



According to US news site Axios, American scientists hope to use high-powered laboratory equipment to study the Bennu asteroid sample. With the aim of learning more about how our solar system has evolved over billions of years.



The “OSIRIS-REx” spacecraft is now on its way to inspect its next target, an asteroid called “Apophis,” the website pointed out, pointing to the spacecraft’s launch in 2016 and receiving samples from “Bennu.” Asteroid in 2020..



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iPhone 15 Pro Max back glass fails durability test

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iPhone 15 Pro Max back glass fails durability test


Muhammad Ayman

Sunday, September 24, 2023 04:10 PM

Apple says the iPhone 15 Pro and iPhone 15 Pro Max come with an all-new body design made of titanium, and a drop test video yesterday raised initial concerns about the new design’s durability, particularly the new curved edges. Up to 9to5mac.

JerryRigEverything released its annual durability test iPhone 15 Pro and the iPhone 15 Pro Max, which showed that the phone failed the durability test compared to other older phones.

The phone has been subjected to the scratch test, heating test, sandpaper test and more, and as expected, titanium scratches easily. However, the matte glass back is more scratch resistant.

The screen performs well during the scratch test, as does the triple camera cover on the back of the iPhone 15 Pro.

“Time to see if it’s the new system,” says Jerry Rick Everything as he begins tapping the device. Titanium coated aluminum This damages the structural integrity of your iPhone 15 Pro Max and within seconds, a cracking sound is heard and the back glass shatters completely.

JerryRigEverything speculates that since titanium has five times the tensile strength of aluminum, the back of the glass will not be able to withstand even the smallest amount of stress. Back glass.



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