Sending information from one planet to another using a series of floating helium balloons would not be a practical or feasible method of communication. Balloons rely on the Earth's atmosphere to provide buoyancy and support. In the vacuum of space, there is no atmosphere, and therefore balloons would not be able to float or move.
On the other hand, radio waves can travel through the vacuum of space and are commonly used for long-distance communication in space missions. Radio waves are a form of electromagnetic radiation that can transmit information at the speed of light. They can be used to send signals to and from spacecraft, satellites, and other planetary bodies.
While radio waves can propagate through space, there are limitations to their effectiveness. The signal strength decreases over long distances, and there can be interference and noise that affect the quality of the transmitted information. Additionally, the time delay for radio signals to travel between planets can be significant, ranging from minutes to hours depending on the distance.
In practice, interplanetary communication relies on sophisticated communication systems, including antennas, receivers, and transmitters, designed specifically for long-distance space missions. These systems take into account factors such as signal strength, power requirements, data encoding, and transmission protocols to ensure reliable communication over vast distances.
In summary, while balloons cannot be used for interplanetary communication due to the lack of atmosphere in space, radio waves are a viable method for transmitting information across vast distances in space, although they have their own limitations and challenges.