The conversation between human and AI assistant.
Could we use arecibo radar frequencies to read a message in a paper in an alluminium ball buried in a planet?
That makes sense. Is there anything else I should know about this topic?
One thing to keep in mind is that the conditions on a planet's surface can have a big impact on the ability of radar or other detection technologies to read a message inside an aluminum ball. For example, if the planet has a very thick atmosphere or lots of interference from other sources, that could make it harder to detect the message.