Are We Alone in the Universe? The Surprising Probability of Alien Life In this short video, we learn about the mind-blowing number of potential Earth-sized planets that may exist in the universe. According to recent studies, on average, every star has at least one planet, and one-fifth of those have Earth-sized planets. With approximately 100 billion stars in our Milky Way galaxy alone, this means there could be billions of Earth-like planets in our galaxy. And when you consider the 100 billion

383K views · 20K reactions | Go NASA's Hubble Space Telescope. It’s your birthday. ✨ This Friday marks 30 years of stunning imagery and ground breaking discoveries for the one-of-a-kind orbiting telescope. Join us in observing #Hubble30 by sharing your favorite galactic image! https://go.nasa.gov/3aoSMxH | NASA - National Aeronautics and Space Administration | Facebook

49K views · 1.3K reactions | The Hubble Space Telescope's instruments are pushed to their limits when trying to detect the composition of exoplanet atmospheres. The Hubblecast video series explains. | Space.com | Facebook