The week was very busy for the astronomical community. In addition to the first photograph of a large black hole in the center of our galaxy, called Sagittarius A *, the mysterious design on Mars’ face has attracted the attention of many. Researchers also discovered that they can grow plants in the soil on the Moon.
Check out this and other weekly news about space.
The first picture of the “big” black hole, Sagittarius A *
On Thursday (12), the event co-hosted Horizon Telescope (EHT) released the first real image of the huge black hole Sagittarius A * (or Sgr A *, for “intimate”), which sits in the middle of the Milky Way. This is the second time EHT has been able to visualize black holes. The image is the result of a survey conducted in 2017, with thousands of “images” taken from various radio telescopes scattered around the world.
With that image, scientists were able to draw new conclusions about Sgr A * and prove that it agrees with the predictions of Albert Einstein’s General Relationship Theory. Sagittarius A * has been studied and monitored by scientists for decades, so we know that it contains approximately 4.31 million mass molecules and that it is dormant.
To get that picture, it was necessary to create a network of radio telescopes in observation centers in various parts of the world that, together, create a “virtual” telescope close to the size of the Earth. In addition, it took five years of work with more than 300 researchers from 80 institutions around the world.
Not everything is visible, but some things are visible excess for us to ignore. This is the story of a new image recorded by the Curiosity rover media, which depicts a rectangular shape in rock that closely resembles a type of door, or door, created by intelligent creatures. Of course, this attracted many people, especially those hoping to find intelligent life on another planet.
Scientists are still not sure what this “notch” on the rock is, but there are few possible explanations. Most likely it is a shear fracture caused by, who knows, some earthquake (or “marsquake”) on the planet. And you, what do you think?
A new paper suggests that Dyson circles, hypothetical structures that can be built around stars to provide energy, may be present near white dwarfs (remnants of stars as low as the Sun after “death”).
The author of the study stated that these structures should cause visible changes in the light signature of these remains and that, perhaps, could be detected by our telescopes. The author of the study estimates that less than 3% of the outer planets that can be detected by our instruments, and that are closer to the stars that will be white, may have a civilization capable of building Dyson spheres.
Images from 50 years ago, considered the best UFO photograph ever taken, were examined with the help of modern equipment and the results were impressive. The original record, made in 1971, shows a metal object and “clicked” while Sergio Loaiza was flying at an altitude of about 3 km in the Costa Rican region, on a mission of the National Geographic Institute.
Using original film, which is preserved in the US National Records and Documents Administration, Esteban Carranza organized a laboratory in Kansas to digitalize the image to a high-quality dance analyst. The intensity is remarkable and reflects the details of the metallic object, such as a type of shape that has never been seen before. It is still unknown whether it is an “extraterrestrial” object or a certain technology on Earth.
In one experiment, scientists were able to grow plants on moon soil samples introduced by Apollo 17 50 years ago. This is a big step forward for plans for a long stay for astronauts on the Moon. New research has shown that the moon regolith, located on the surface of the Moon, may be able to bear fruit.
So, of course, you need to create greenhouses and strengthen the regolith with some nutrients and water. After two days, all the seeds in the experiment were germinated. The problem is that the plants were stressed, striving to be healthy. Despite this, the results showed that the research could be on the right track.
A meteorite from Mars and discovered in Antarctica in 2003 could provide the answer we have been searching for for a long time: Was Mars once capable of sustaining life? The object belongs to the class of nakhlites, which may contain information about ancient hydrothermal systems on Mars. If the meteorite had information from the Martian hot springs, it could have come from a possible childhood of life.
This phenomenon caught the attention of scientists because scientists discovered that the minerals contained there were in contact with water, about 630 million years ago. However, the analysis shows that this water did not reach the meteorite through a hydrothermal system, but from the ice contained within it. This ice may have melted during the impact on the earth. In other words, the area from which the meteorite came out does not appear to be habitat.
Scientists have found a small fragment preserved in an amber piece in the Creation of Hell Creek, an archaeological site located in North Dakota, USA. This area has the effect of asteroids that killed dinosaurs, and it could be that the fragments inside the amber are fragments of that asteroid.
The discovery has not yet been analyzed by other scientists, but if the fragment were confirmed as part of an atmospheric rock, it could be a sign of asteroid origin.
NASA scientists are considering sending “naked” images into the sky, in an attempt to contact aliens. It is not a sexual message, but a representation of human anatomy.
The idea is to inform our global neighbors about our species, such as the average height, body parts and population of our planet at the time of distribution. True, all of this is still a proposal, and there is no guarantee that the plan will be implemented. Still, it is always right to keep the debate: should we give too much information about ourselves to possible creatures that we do not even know about?