5.3K views · 182 reactions | Why does the universe look the way it does?  Matthew Bothwell tells us how the answer could lie in the massive, dusty, and star-producing galaxies that existed billions of years ago, and are invisible to the naked eye. | Royal Institution of Great Britain | Facebook

After 16 years of amazing infrared discoveries throughout the cosmos, NASA's Spitzer Space Telescope mission is coming to an end. Join us on Jan. 22 at 1 p.m. EST for a live broadcast celebrating the life and legacy of one of our four great observatories. Mission members will discuss the observatory's far-reaching scientific impact and the incredible team that kept the mission going far longer than anticipated. Tune in! | NASA - National Aeronautics and Space Administration