“Asteroid 2015 RN35 is large enough and will fly very close so that amateur astronomers can observe it,” scientists say.
It was called the “Christmas asteroid” and specified that it reaches 140 m in diameter.
Residents of the Southern hemisphere of the Earth will be able to observe it.
It is reported that the asteroid will approach our planet at a distance of 680 thousand km, so it does not pose a danger to humanity in the near future.
Scientists conducted a study based on observations of the Hubble telescope. The results indicate the presence of a mysterious glow surrounding the Solar System, which may lead to a revision of the model of its structure.
200 thousand Hubble images were sorted. The light of planets, stars, galaxies, asteroids and other known objects of observation was removed from them. As a result, an excess of observed light was detected, which is equivalent to the glow of ten fireflies scattered throughout the sky.
One possible explanation for this glow may be the reflection of sunlight from a sphere of minute dust that was created by comets penetrating from the outer layers of the Solar System. Such a dust shell could become a new component of the Solar System, which is usually not taken into account in its structure.
Since 2015, the LIGO-Virgo-KAMA collaboration has detected about 85 pairs of black holes colliding with each other.
It is known that these cosmic catastrophes occur frequently: as the sensitivity of the detector increases, scientists expect that in the next cycle of observations, starting in 2023, they will receive data on these events almost daily. However, scientists do not yet know what causes these collisions.
Aging stars can create beautiful patterns in the sky that sometimes look like flowers or insects. A striking example is NGC 6302.
The dying central star of the nebula has become exceptionally hot, the temperature on its surface exceeds 200 thousand. °C, it shines brightly in the visible and ultraviolet ranges, but is hidden from the observer by a dense torus of dust.
The emission of oxygen is shown in blue, hydrogen in green, and nitrogen in red. NGC 6302 is located at a distance of 3,500 st. years in the constellation of Scorpio. Planetary nebulae are formed from the outer atmospheres of stars similar to our Sun, and usually exist no more than 20 thousand years.
The space rock, called the Winchcomb meteorite, has been closely studied by researchers who have found that it contains water similar to the water on our planet. Scientists focus on the dominant theory that the Earth received its huge supply of water thanks to asteroids that intensively bombarded its surface in the distant past.
During the study of the “space guest”, it was found that Winchcomb includes about 2% carbon and 11% water. This water, according to the researchers, is almost indistinguishable from Earth’s water by the ratio of different types of hydrogen atoms.
In addition, extraterrestrial amino acids were found in the meteorite, which are a “starter kit” for the building blocks of life. This suggests that meteorites could deliver to Earth not only water, but also organic materials, which eventually turned this planet into a living world.
When the Betelgeuse star began to fade rapidly in 2019, many thought that it would soon flare up as a supernova. However, over time, its luminosity recovered, and scientists began to think about the cause of this phenomenon. Now there is a theory that it was caused by a black hole that passed near the star.
It was with her that astronomers tried to explain the dimming of Betelgeuse. They created a computer model of this process, but it showed that from such a passage, the deformation of the star’s atmosphere would be too weak to lead to a 60 percent drop in brightness.
However, scientists have suggested that the black hole could cause other effects on the surface of the giant star. For example, an explosion could occur on it, and together with tidal inflation, this could really cause a grandiose dimming.
Here is an atypical spiral galaxy with a jumper (an elongated structure of stars and gas in the galactic disk), which looks like a dandelion seed head caught up by the wind. In addition, ESO 137-001 behaves accordingly, spreading its “seeds” in space.
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The galaxy is moving at a speed of about seven million kilometers per hour, which leads to a rapid loss of gas — gas and dust clouds literally break away from it. Extreme conditions trigger star formation, and massive and extremely hot stars appear, which in the image look like blue dots forming bright “streams” at the base of ESO 137-001.
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The image attached to the post was created based on data obtained by the NASA/ESA Hubble space Telescope and the NASA Space Observatory “Chandra”.
A multiverse is a hypothetical set of all possible real—life parallel universes.
According to the hypothesis, the universe in which we live may not be the only one that exists. In fact, there are an infinite number of universes, and they are all combined into a multiverse
This concept may seem a little crazy, but if it is true, then there is an alternative world exactly like the one we live in. Despite the fact that physicists claim that the multiverse is just a fiction, some scientists are trying to prove it. Even Stephen Hawking tried to solve her paradox.
This is NGC 2467, a scattered star cluster with an emission nebula 17,000 light-years away from Earth.
An emission nebula is an interstellar cloud emitting in the optical range due to the ionization of its own gas. The gas is ionized in the process of active interaction with young unstable stars.
The active star and its associated nebula, known as NGC 3199, are located at a distance of 12 thousand sv. years in the southern constellation of Kiel. The size of the nebula is 75 light years.
Near the center is the Wolf-Rayet star WR-18 – a massive star with a short life, emitting a powerful stellar wind with a complex structure. It is known that Wolf-Rayet stars create nebulae with interesting shapes when their powerful winds rake the surrounding interstellar matter.
It was assumed that the bright edge testified to the formation of a head shock wave when the star moves through a homogeneous medium, like waves arising near a boat floating on water. However, recent measurements and their analysis have shown that the star is not moving quickly towards the bright edge. Another explanation has been proposed – the matter surrounding the star is not homogeneous, but contains denser clumps near the bright edge.
