Supermassive Black Holes and the Milky Way

The video explores the supermassive black hole at the center of the Milky Way, known as Sgr A*. It discusses its discovery, the role of black holes in galaxies, and their connection to quasars. The video reassures viewers that the black hole poses no immediate threat to Earth. It also speculates on future galactic events, such as the collision with Andromeda, and concludes with a preview of the next episode on Lagrange Points.

What is the mass of the supermassive black hole at the center of the Milky Way?

• 4.1 million times the mass of the Sun

• 10 million times the mass of the Sun

• 1 million times the mass of the Sun

• 2.5 million times the mass of the Sun

In which constellation is the supermassive black hole at the center of the Milky Way located?

• Andromeda

• Sagittarius

• Orion

• Cassiopeia

What designation was given to the intense source of radio emissions at the center of the Milky Way?

• Sgr A*

• Sgr D*

• Sgr B*

• Sgr C*

Who were the astronomers that discovered the intense source of radio emissions at the center of the Milky Way?

• Bruce Balick and Robert Brown

• Edwin Hubble and Stephen Hawking

• Carl Sagan and Neil deGrasse Tyson

• Galileo Galilei and Johannes Kepler

What are quasars?

• Galaxies that are merging

• Stars that have exploded

• Black holes actively feeding on material

• Planets that emit radio waves

How far is the supermassive black hole at the center of the Milky Way from Earth?

• 100,000 light-years

• 50,000 light-years

• 26,000 light-years

• 10,000 light-years

What will happen when the Milky Way collides with Andromeda?

• The collision will create a new galaxy called Milkdromeda

• Both galaxies will be destroyed completely

• Stars will interact and some may be consumed by black holes

• The black holes will merge immediately

How often do stars get consumed by the supermassive black hole at the center of the Milky Way?

• Every few years

• Never

• Rarely

• Very often

What is the estimated mass of Andromeda's black hole?

• 200 million times the mass of the Sun

• 50 million times the mass of the Sun

• 10 million times the mass of the Sun

• 100 million times the mass of the Sun

What will happen to the supermassive black hole over Googol years?

• It will merge with another black hole

• It will evaporate

• It will remain the same

• It will grow larger