The monumental and futuristic alien artifact is a colossal, mind-bending structure made of advanced and enigmatic materials that reflect and refract light in hypnotic and mysterious ways. Its surface is adorned with intricate and cryptic patterns, symbols, and glyphs that hint at cosmic secrets and profound knowledge.  The artifact's shape is angular, geometric, and imposing, with sharp edges and smooth curves that evoke an otherworldly and profound ambiance. It emits a strange, unsettling hum, vibration, or energy field that inspires a sense of awe, wonder, and even terror.  The aura surrounding the artifact is potent, intense, and overwhelming, shrouded in mystery and power that transcends human comprehension. The hazardous radiation, energy fields, or tentacular appendages add to the sense of wonder and terror that the artifact evokes in those who dare to approach it.  In summary, the monumental and futuristic alien artifact is a quintessential example of the enigmatic and transcendental aspects of the cosmos, a cosmic entity that beckons humanity to explore the unknown realms of the universe and ponder the deeper questions of existence.