When the astronomers got around the problem of seeing through the dust that lies between us and the center of the Milky Way galaxy, what did they find there?

AA black hole with a mass that's 4.3 million times bigger than the mass of our Sun.
BA cluster of white dwarf stars that are the burned-out remnants of stars that used to be like our Sun.
CA large neutron star that's the size of our solar system.
DA large cluster of planets that are thought to be capable of hosting life.

Question

01-11-2026
Physics

Answered

When the astronomers got around the problem of seeing through the dust that lies between us and the center of the Milky Way galaxy, what did they find there?

AA black hole with a mass that's 4.3 million times bigger than the mass of our Sun.
BA cluster of white dwarf stars that are the burned-out remnants of stars that used to be like our Sun.
CA large neutron star that's the size of our solar system.
DA large cluster of planets that are thought to be capable of hosting life.

Verified Answer :

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GinnyAnswer GinnyAnswer · Answer 1 · 2026-11-01T19:32:00-05:00

Final answer:

Astronomers discovered a black hole at the center of the Milky Way, known as Sagittarius A, with a mass approximately 4.3 million times that of our Sun. They utilized advanced technologies, particularly in infrared and radio wavelengths, to see past the obstructive dust. This finding is significant for understanding the dynamics of our galaxy.

Explanation:
Discoveries Near the Center of the Milky Way
Astronomers faced significant challenges when trying to observe and study the center of the Milky Way galaxy due to the thick dust and gas that obscure visible light. However, with advancements in technology and techniques, particularly the use of infrared and radio wavelengths, they have successfully penetrated this darkness.

The most notable finding is a black hole located at the galaxy's center, known as Sagittarius A. This black hole has an incredible mass of approximately 4.3 million times that of our Sun. The presence of this massive black hole was inferred through observing the orbits of nearby stars, which displayed rapid movements that could only be explained by a supermassive black hole exerting a strong gravitational pull.

Other findings include various stars and stellar remnants, but the black hole is the most significant and well-documented discovery in this area. Thus, the correct answer to the student's question is the first option: a black hole with a mass that's 4.3 million times bigger than the mass of our Sun.

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