Black Hole XTE J1650-500 Is The Size Of A City But 4X The Mass Of Our SunNews Staff
Earth is in a stable orbit around the Sun and despite the star’s huge size and far greater gravity compared to our planet, it’s thankfully unable to pull us in towards it. What actually falls into a black hole The reason material is able to cross the event horizon is collisions ...
As this new work points out, a captured primordial black hole would initially have almost no effect on a Sun-like star. Compared to the mass of the Sun, an asteroid's worth of mass might as well be a speck of dust. Even if it were a black hole it couldn't consume much of the S...
Though D9 is relatively young at just 2.7 million years old (compared to our 4.6 billion-year-old sun, anyway) and its discoverers expect that its two stars will soon be forced to merge, this discovery indicates that the environments around supermassive black holes might not be as turbulent...
A large range of Cloudy models (Methods) are compared with the values observed in GN-z11. Models with metal-poor (Zneb = 0.1Z⊙) and metal-rich (Zneb = 1Z⊙) gas are shown with solid lines and dashed lines, respectively (colour-coded according to the ionization parameterU),...
A black hole sun could be friendlier than you might expect. Planets orbiting a black hole – as they do in the film Interstellar – could sustain life, thanks to a bizarre reversal of the thermodynamics experienced by our sun and Earth. According to the
The heat released by a black hole’s transit through the planet would be “less than 1015 joules”, he adds, which is “small compared to the internal energy of the Earth”.Nevertheless, a PBH would have a notable local impact, Rahvar notes. “The passage of a black hole could melt ...
after the German astronomerKarl Schwarzschild, who in 1916 predicted the existence of collapsed stellar bodies that emit no radiation. The size of the Schwarzschild radius is proportional to the mass of the collapsing star. For a black hole with a mass 10 times as great as that of theSun, ...
In 2021, astronomers revealed a new view of the giant black hole at the center of M87, showing what the colossal structure looks like in polarized light. As polarized light waves have a different orientation and brightness compared to unpolarized light, the new image shows the black hole in ...
Compared to stars, galaxies are relatively close to one another. They can interact and, more importantly, collide. When galaxies collide, they actually pass through one another — the stars inside don't run into one another because of the enormous interstellar distances. But collisions do tend ...