Are We Inside a Cosmic Void? Milky Way Mystery Explained #Universe Could our galaxy be living inside a gigantic cosmic void? 🌌 Astronomers are uncovering evidence that the Milky Way may sit within a massive underdense region of space nearly 2 billion light-years wide. This discovery could explain the long-standing Hubble tension—the puzzling disagreement over how fast the universe is expanding. If our local region contains less matter than average, gravity would be slightly weaker, making nearb

In 2025, we kept the space economy booming, advanced science from the Sun to distant stars—and much more. Next year, our NASA Artemis astronauts will fly around the Moon, preparing for lunar landings and paving the way to Mars. Learn more about our milestones and what's to come! | NASA - National Aeronautics and Space Administration