Has there ever been a black hole seen? The black hole resides 55 million light-years from Earth and has a mass 6.5 billion times that of the sun. Event Horizon Telescope collaboration et al. At last, we can see it: a...
What year will the black hole reach Earth? What are the chances of Earth being consumed by a black hole? Experts who spoke to Newsweek said there is practically zero chance of the Earth ever colliding with a black hole before...
What happens if you go inside a black hole? If you leapt heroically into a stellar-mass black hole, your body would be subjected to a process called ‘spaghettification’ (no, really, it is). The black hole’s gravity force would compress you from...
Why dont all supernova remnants contain pulsars? There are several reasons why most supernova remnants do not contain visible pulsars. Perhaps the original pulsar was ejected because there was a recoil from an asymmetrical explosion, or the supernova formed a black...
How big is a typical neutron star? Neutron stars are typically about 20 km (12 miles) in diameter. Their masses range between 1.18 and 1.97 times that of the Sun, but most are 1.35 times that of the Sun. Thus, their...
Is a neutron star the hottest star? Neutron stars, just ~12 km across, are not only the densest objects in the Universe, but the hottest at their surface, as well. How hot is a neutron star Celsius? In 1997 Hubble provided...
Are there neutron stars on Earth? What would a neutron star do to Earth? Neutron stars can be dangerous because of their strong fields. If a neutron star entered our solar system, it could cause chaos, throwing off the orbits of...
What is the density of a neutron star? Neutrons stars are extreme objects that measure between 10 and 20 km across. They have densities of 1017 kg/m3(the Earth has a density of around 5×103 kg/m3 and even white dwarfs have densities...
What is a neutron star drop? Can you touch a drop of neutron star? No. A neutron star has such an intense gravitational field and high temperature that you could not survive a close encounter of any kind. First of all,...
How does a Sun become a neutron star? How does a supernova become a neutron star? Supernovae occur at the end of a massive star’s life, when it is a red supergiant, with its nuclear fuel almost spent. When the central...