12 Incredible Space Missions Set to Unravel Universe's Biggest Mysteries

4. Euclid Space Telescope: The Dark Universe Surveyor

If you’ve ever wondered what holds the universe together (and what’s racing it apart), Euclid is the mission to watch. Spearheaded by the European Space Agency, Euclid launched in 2023 to map the mysterious dark matter and dark energy that make up the bulk of our universe. Its advanced instruments are capturing light from billions of galaxies, stretching across over a third of the sky. Scientists hope this grand cosmic survey will help explain how these hidden forces have shaped galaxies and the web of cosmic structure we see today. For the rest of us, Euclid’s work is about unlocking the biggest puzzle pieces of existence. What are dark matter and dark energy, really? How do they influence everything from galaxy clusters to the ultimate fate of the cosmos? Stay tuned—Euclid could provide clues that have eluded astronomers for generations.