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Scientists Are Puzzled By Mysterious Signals From Two Planets At Once



Both worlds are similar to the Earth, revolve around sun-like stars and are in the same constellation at about the same distance from us.

Green Bank radio telescope is located in the eastern United States in the so-called radio silence zone, that is, in an area where very little use is made of anything that emits radio waves.

If, for example, emergency services need to notify the population about something, they must warn the observatory. Green Bank is one of the main tools of the SETI project: Search for Extraterrestrial Intelligence. A full-turning 100-meter dish can be directed to any point in the sky, more precisely, to that part of the celestial sphere that is above it.

A group of scientists involved in SETI received a six-hour observation window several years ago on March 25, 2018. The experts decided during this time to listen to the exoplanets, which at that moment will pass through the disks of their stars, this is called a transit.

There were hundreds of such planets, but only a few of them had to be chosen, which are closer to us and to each other in the sky. Recall that today more than five thousand exoplanets have been officially confirmed, many of them have a year, that is, the period of rotation around the star, is only a few days.

That is, every few days they transit through the disks of their parent stars. In this case, they settled on 12 planets in the constellation Cygnus.

In terms of size, the selected planets are either about the size of the Earth, or one and a half of the Earth, and one is 12 times larger than the Earth, that is, even larger than Jupiter. And this is really a gas giant, it does not have a solid surface, but, on the other hand, it may well have solid satellites, like our Jupiter.

These exoplanets follow the disk of their star (some in forty minutes, others in almost four hours), but scientists observed each transit for only a few minutes.

What scientists want to hear: First, they need a radio frequency of about 1420 megahertz. The fact is that it is at this frequency that hydrogen, the most common element in the universe, “broadcasts”. In addition, at this frequency, the background general galactic radio noise is almost inaudible.

Therefore, astrophysicists reasoned that it would be most logical for a hypothetical extraterrestrial civilization to choose just such a frequency. Secondly, it is much easier to catch the signal of an extraterrestrial civilization if it is narrow-band, again, easily distinguishable against the general background.

Twelve planets listened in the range from 1100 to 1900 megahertz. It is interesting that the calculation was that if there is someone reasonable there, then they know about us and purposefully send a signal to us.

So, from their point of view, it is best to signal when their planet in our telescopes is clearly in the middle of the star’s disk, because at that moment it looks exactly at the Earth. And at the same time, astrophysicists emphasize that if we catch a meaningful signal from them, then their transmitter is definitely 60 times more powerful than the one on the famous Arecibo telescope in Puerto Rico.

Recall that earthlings sent messages to brothers in mind, including from Arecibo and from the RT-70 telescope in Evpatoria. As a result, most of all, what was needed was heard from two planets.

One of them – Kepler-1332 b – weighs like two and a half Earths, the other – Kepler-842 b – is three times as massive as our planet. Both are located at a distance of about 1700 light years from us. Both are found near stars slightly smaller than the Sun.

One star is a little hotter than our star, the other is colder and dimmer – an orange dwarf. In fact, it’s hard to imagine how heat-resistant and fire-resistant intelligent life must be there: these worlds are several times closer to their stars than Mercury is to the Sun.

Nevertheless, the signals from them came at just about the right frequency: 1749 megahertz and 1040-1438 megahertz, respectively. True, they turned out to be quite broadband, but, perhaps, it is all the more surprising that we caught them.

In addition, scientists say that you still need to make allowances for the fact that others can reason and develop technology in a different way. And the most curious thing: both signals were received just when the planets were at the very center of the star’s disk.

Life on a hot planet can be a daunting prospect. With temperatures soaring to levels that can make it difficult for life to exist, the notion of living on a planet where the temperatures are so high seems like an impossibility. But, in reality, life can find ways to survive the heat, and even thrive in such conditions.

One way life can survive on a hot planet is through the process of adaptation. Adaptation is the ability of a species to evolve and change in order to survive in a new environment. By evolving certain abilities, such as a thicker skin, stronger claws or wings that enable them to soar in the heat, these species have the ability to survive in the hot and hostile atmosphere of a planet.

Another way life can survive on a hot planet is through the use of hibernation. Hibernation is a state of inactivity that animals enter in order to conserve energy and survive in extreme temperatures. By entering this state of rest, animals can survive temperatures that would be too hot for them to handle while they are active. This process of hibernation is common in desert animals, and could be a potential way of life on hot planets.

Finally, life on a hot planet could be possible through the use of technology. While the temperatures on hot planets may be too extreme for any living species, the use of technology could provide the means for life to exist. Robots and machines could be used to explore the planet and collect data, while satellites and communication devices could be used to connect inhabitants of the hot planet with the outside world.

Overall, the idea of life existing on a hot planet is certainly not impossible. Through natural adaptation, hibernation, and the use of technology, life could certainly have a chance to exist and even thrive in such extreme climates.

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Alien space debris stuck in Earth’s orbit, researchers say




Recently, a group of experts from Harvard University, led by physics
professor Avi Loeb, announced the possible presence of alien space
debris in Earth’s orbit, reports the Daily Star.

space research expert Professor Loeb is confident that the discovery of
such “interstellar objects could help expand our knowledge of possible
alien civilizations and technologies. A team of scientists is conducting
research to confirm that some of the objects in our orbit may be
connected to other star systems.

During an interview with Live
Science, Professor Loeb explained that these objects could enter the
solar system from interstellar space, defying Jupiter’s gravitational
pull and occupying limited orbits around the sun.

Some of them may
have technological origins similar to the probes sent by mankind into
interstellar space, such as Voyager 1 and Voyager 2, Pioneer 10 and 11
and New Horizons.

despite these interesting assumptions, Professor Loeb did not specify
what specific objects he was talking about. In his research report, he
notes that there could be “a significant number” of potentially
detectable objects in Earth’s orbit.

To confirm their assumptions,
the team of scientists uses computer simulations and the Vera Rubin
Observatory (Chile) with a high-resolution camera of 3.2 billion pixels.
This will allow for regular observations of the Southern sky and the
possibility of detecting several captured objects about the size of a
football field.

It is assumed that these interstellar objects passed through the
boundaries of the solar system and may carry unique information about
other civilizations and their technologies. If we could confirm the
origin of these objects, the mysteries that open before us, this would
be a real breakthrough in space exploration.

Professor Loeb
expresses hope that the new research will not only help expand our
knowledge of extraterrestrial technologies, but may also lead to the
discovery of new alien civilizations . Answers to such questions can be
of global significance and influence our understanding of the place of
mankind in the Universe.

while there are still many questions and assumptions, the study by
Professor Loeb and his team opens a new chapter in space exploration.
Each new discovery can be the key to deciphering the mysteries of the
cosmos and the possibility of encountering alien life forms.

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Betelgeuse is acting strange again




Betelgeuse, a red giant on the brink of death, continues to show
unusual behavior. After the Great Blackout, which occurred in late 2019
and early 2020, the star became unusually bright. It is now the seventh
brightest star in the sky, while it normally ranks tenth. This has led
to speculation that Betelgeuse is preparing to explode in a
spectacularly large supernova.

However, scientists believe it’s too early to tell, and it’s likely
that this behavior is due to ongoing fluctuations after the Great
Blackout of 2019, and the star will return to normal within a decade.

Betelgeuse is one of the most interesting stars in the sky. It is
about 700 light-years from Earth and is a red giant in the last stage of
its life. It is also an unusual star for a red giant because it was
previously a monster blue-white O-type star, the most massive class of

Betelgeuse has changed its spectral type because it has almost
exhausted its hydrogen reserves. It now burns helium into carbon and
oxygen and has expanded to a gigantic size: about 764 times the size of
the Sun and about 16.5 to 19 times its mass.

Eventually it will run out of fuel to burn, become a supernova, eject
its outer material, and its core will collapse into a neutron star.

Before the Great Blackout, Betelgeuse also had periodic fluctuations
in brightness. The longest of these cycles is about 5.9 years and the
other is 400 days. But it seems that the Great Blackout caused changes
in these oscillations.

A new paper by astrophysicist Morgan McLeod of the
Harvard-Smithsonian Center for Astrophysics has shown that the 400-day
cycle appears to have been halved. This pulsational cycle is probably
caused by expansion and contraction within the star. According to
simulations carried out by MacLeod and his colleagues, the convective
flow inside Betelgeuse may have risen and become material that separates
from the star.

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