We live in an infinite universe, although it has a finite volume, scientists said and gave a simple explanation for this.
Scientists have suggested that a non-supermassive black hole may be hiding in the center of our galaxy. But then what takes its place?
With the light hand of Vladimir Vysotsky, Hinduism is considered a convenient religion: whatever happens in this life, nothing will go in vain, and in some of the endless series of rebirths, the final bliss will come. These mystical ideas find an unusual reflection in modern physics with its hypotheses about the existence of not one, but an infinite number of universes – an all-encompassing Multiverse, among the worlds of which all imaginable and unthinkable events unfold. In some of them, you are a musician, a military leader, a billionaire, or even a president.
Dying stars form clouds of dust and gas of fantastic shape. These are planetary nebulae. In the course of a new study, scientists have understood exactly how these formations are formed.
At a distance of about 15,000 light-years from us, there is an active black hole that seems to periodically illuminate an unremarkable cloud of gas with gamma rays. But there's a catch: this cloud of gas is about 100 light-years away from the black hole and not in the path of jets shooting out of it. Therefore, it is not at all clear why it is pulsating.
Astronomers have discovered a strange flash of ultraviolet light during a supernova explosion. This is only the second time this has been observed and may help researchers understand what caused such a death of stars.
On Ganymede, as can be seen in the images taken by the Juno research apparatus, a constant plasma rain pours from the magnetosphere, which changes the structure of ice in the polar regions of the satellite.
New experimental data explaining the reasons why diamonds can rain on Neptune and Uranus are presented.
Physicists have a model in which a person can travel through time and change the past without causing time paradoxes. But without paradoxes, time travel loses its meaning.
When a black hole absorbs an object, information about what it consisted of becomes inaccessible to an outside observer, even if he had the opportunity to look beyond the event horizon. A black hole is completely described by mass, electric charge and angular momentum, it has no other properties. In this sense, it is a very simple object. So says the most popular now (but not proven) hypothesis.