Answered

(Bonus) Which of the following objects was recently discovered by astronomers?

A. A neutron star between our solar system and Alpha Centauri
B. A star smaller than the mass of the Earth
C. A supermassive black hole at the center of our solar system
D. A star that is 300 times the mass of the Sun
E. A quasar just outside our local group of galaxies but within our local supergroup



Answer :

GinnyAnswer

Final answer:

Neutron stars and supermassive black holes have been recently discovered, providing significant insights into the universe's structure.


Explanation:

Neutron stars are the most compact objects known, composed of neutrons with a density similar to an atomic nucleus, believed to be remnants of supernovae. The recent discovery of supermassive black holes near galactic centers, including Sagittarius A*, has provided evidence for the existence of black holes, confirmed through observational data and X-ray emissions.

Physics near a black hole is intriguing, with rapidly increasing gravity tearing matter apart as it nears the event horizon. The capability to measure masses of X-ray-emitting objects has validated the presence of black holes concentrated near the centers of galaxies.


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