Galactic collision may have given rise to Milky Way’s warped shape

The transcript discusses the warped S-shape of the Milky Way galaxy, which rotates with its stars. A study in Nature Astronomy attributes this shape to a collision with the dwarf satellite galaxy Sagittarius, disrupting the Milky Way's disk. The European Space Agency, citing the study's authors, explains that Gaia's mapping of star motions, velocities, and distances helped researchers trace back the collision events with Sagittarius that shaped our galaxy.

What is the shape of the Milky Way galaxy?

• A square

• A triangle

• An S-shape

• A perfect circle

What is believed to have caused the Milky Way's warp?

• A black hole

• A collision with another galaxy

• A comet impact

• A supernova explosion

Which galaxy is most likely involved in the collision affecting the Milky Way?

• Andromeda

• Sagittarius

• Triangulum

• Whirlpool

Which organization used Gaia's data to map the Milky Way's stars?

• European Space Agency

• NASA

• Roscosmos

• ISRO

What did researchers do to understand the Milky Way's formation?

• They observed other galaxies

• They simulated future collisions

• They used telescopic images

• They worked backward from current data