Cosmic steppingstones refer to the astronomical phenomena, celestial objects, and events that assist scientists and astronomers in the pursuit of new discoveries and knowledge about the universe. Synonyms for cosmic steppingstones include celestial guideposts, cosmic signposts, astral markers, galactic bearings, stellar beacons, outer space landmarks, and universal waypoints. These terms describe the role of cosmic objects such as stars, planets, comets, asteroids, and black holes, in providing navigation and reference points for scientists and space explorers. The understanding of cosmic steppingstones is crucial for mapping and exploring the vast and mysterious universe, revealing its secrets and unlocking its mysteries.