What keeps light and all other forms of radiation from escaping A black hole? A black hole is a region of spacetime where gravity is so strong that nothing – no particles or even electromagnetic radiation such as light – can...
How massive is a neutron star? Small but Mighty. Despite their small diameters—about 12.5 miles (20 kilometers)—neutron stars boast nearly 1.5 times the mass of our sun, and are thus incredibly dense. Just a sugar cube of neutron star matter would...
Is a neutron star more massive than the Sun? Neutron stars are among the densest objects in the cosmos. They average only about 12 miles in diameter but are denser than our sun, which is more than 72,000 times bigger than...
What are pulsars and how are they related to neutron stars quizlet? Pulsars are evidently spinning neutron stars that emit beams of radiation from their magnetic poles. As they spin, they sweep the beams around the sky; if the beams sweep...
What is bigger than A neutron star? White dwarfs are bigger than neutron stars, though not as massive. White dwarfs are about the size of the Earth, and neutron stars are only about 10 km across. (Though both are much more...
Why are not all neutron stars seen as pulsars? Therefore the most likely explanation is that a pulsar is a neutron star that spins rapidly and emits radio waves along its magnetic axis. However, not all neutron stars are necessarily detectable...
How common are gamma-ray bursts? Currently, satellites spot about one gamma-ray burst somewhere in the universe every day. Astronomers, however, think that up to 500 per day may flash through the universe without us knowing. What if a gamma-ray burst hit...
What is a gamma-ray burst NASA? Gamma-ray bursts (GRBs) are the most powerful explosions the Universe has seen since the Big Bang. They occur approximately once per day and are brief, but intense, flashes of gamma radiation. They come from all...
When was the last gamma-ray burst that hit Earth? According to a news release from NASAOpens in new tab, the largest gamma-ray burst ever detected hit Earth on October 9, 2022. Astronomers are calling it the B.O.A.T., or biggest of all...
Did a gamma-ray burst cause a mass extinction? A gamma ray burst may have caused the Ordovician extinction, suggests Brian Thomas and colleagues at the University of Kansas. This mass extinction, the second largest ever, took place about 440 million years...