That's the best way to communicate with aliens, shoot lasers at them.

Not how it works, dude

Or it will just detect comets and then they claim it was alien ship.

Comments traveling faster than the speed of light?

I think the assumption is that it would be a very old civilization that is farther along at manipulating spacetime.

What a waste of time! Everyone knows alien spaceships are always fitted with cloaking devices to prevent detection.

Well I feel like I just read a news story from Star Trek. I am fine with this

An episode of Star Trek was about a spaceship that looked like a giant asteroid with an entire society enclosed.

For the World Is Hollow and I Have Touched the Sky

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How?

How? We have no idea how a Warp drive could possibly work.

If the alien spaceship is the size of a huge planet (like Jupiter).

Yeah we could be using this money to pay Raytheon and Boeing to send more weapons to Ukraine instead.