Yes, radio waves and light travel at the same speed in a vacuum. This speed is approximately 299,792,458 meters per second, which is often rounded to 300,000,000 meters per second.

Here's why:

* Electromagnetic Spectrum: Both radio waves and light are forms of electromagnetic radiation. They differ in their wavelengths and frequencies, but they are fundamentally the same thing.

* Speed of Light: The speed of light in a vacuum is a fundamental constant in physics, denoted by the letter 'c'. All electromagnetic radiation travels at this speed in a vacuum, regardless of its wavelength or frequency.

However, it's important to note that the speed of light can change when it travels through different mediums, like air or water. In these cases, radio waves and light might travel at slightly different speeds depending on their wavelengths.