Pacific Science Center

Bringing science to life.

PacSci-Doku: “Collision Course”

By Dennis Schatz – Senior Advisor

Do you Sudoku? It’s one of the hottest number games around! Well, here’s a twist we think you’ll love. We call it PacSci-Doku. Can you guess why? Here’s how it works. Instead of filling in the blanks with numbers, we use letters. Hidden in one of the columns or rows is the answer to a science question. You’ll find information about the answer on the answer tab below.

The question in this edition is:

What’s produced by the collision of the Andromeda and Milky Way galaxies in five billion years?

To find the answer, complete this PacSci-Doku using the following nine letters:

i  o  e  a  M  d  m  l  k

PacSci-Doku: Collision Course

Puzzle Difficulty: Medium

The Answer
PacSci-Doku: Collision Course

The Answer

The question in this edition is:

What’s produced by the collision of the Andromeda and Milky Way galaxies in five billion years?

The answer: Milkomeda

The Milky Way and Andromeda galaxies are on a collision course. But don’t worry, they are currently 2.5 million light years apart traveling at only 310,000 miles per hour. Thus, they won’t collide and merge for another 5 billion years. It won’t be like a car crash, however, but more like a comic ballet that occurs over 2.5 billion years. The two galaxies will circle around each other a couple times, as some of the stars and gas mix together. Ultimately they will merge into a large elliptical galaxy, rather than being two separate spiral galaxies. Read more about the making of the mondo-galaxy, Milkomeda. You can also view a simulation of the collision to get a better image of what will occur over the next 5 billion years.

 

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