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# Weekly Challenge

Solve the challenge, share your solution and summit the ranks of our Community!

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## Challenge #77: Extending Spatial Lines

13 - Pulsar

Here is my solution

Spoiler
Workflow
8 - Asteroid

Tried many different ways, ended up using similar approach as @PhilipMannering, great learning experience.

8 - Asteroid

Found this tough (and the solution is messy) but the output looks right!

8 - Asteroid

Here is my solution

13 - Pulsar

I was totally shocked to find that my solution was similar to the provided solution!

Spoiler
Macro:
8 - Asteroid

I tried solution with special tools, nice and funny.

But I also checked what if I assumed that on such short distance the Earth is flat ;-). I used simple proportions and it turned out that this solution differs from "space tools" solution by less than 0,01%.

Maybe the Earth is flat? ;-)

8 - Asteroid

I tried solution with special tools, nice and funny.

But I also checked what if I assumed that on such short distance the Earth is flat ;-). I used simple proportions and it turned out that this solution differs from "space tools" solution by less than 0,01%.

Maybe the Earth is flat? ;-)

10 - Fireball

This one was tough for me, I don't have a lot of geospatial experience so I had to look up and read a lot about great circle points, etc...  I finally got there though.

8 - Asteroid

This challenge can be completed with 2 tools, Formula and Select. I used 3 - Spatial Info, Formula, and Select. I think my solution is good, the extended lines are exactly on top of the original lines

11 - Bolide

Hi! Here my solution :)