This chapter takes readers beyond Earth to see how lasers are changing our exploration of space. For decades, space communication has relied on radio waves, but they come with limits. Their long wavelengths spread out over distance, lowering the signal quality and reducing data capacity. Lasers, with their much shorter wavelengths and tighter focus, overcome these problems. This allows more data to travel faster, with greater clarity, across vast stretches of space. Beyond communication, lasers are being used to map planetary surfaces, track satellites, study atmospheres, and may soon help propel spacecraft using light-based propulsion systems. They are also being explored as a way to gently nudge space debris out of orbit, improving safety. This chapter explores how the remarkable power of lasers is helping us better understand space and push the boundaries of where we can go. It breaks down these exciting developments in a way that is clear, engaging, and easy to follow.