4 facts
While there's no air to transmit sound waves as we know them, space isn't a perfect vacuum. Planets, stars, and other celestial bodies emit electromagnetic vibrations that can be converted into sound, revealing a hidden symphony.
Known as Gaia BH1, it's located in the constellation Ophiuchus and is about 10 times the mass of our Sun. This discovery challenges previous assumptions about how many dormant black holes exist in our galaxy and their detectability.
Scientists estimate there are between 100 billion and 400 billion stars in our Milky Way galaxy alone, and there are billions of galaxies in the observable universe. This vastly outnumbers the estimated 7.5 x 10^18 grains of sand on all Earth's beaches.
This mind-boggling comparison helps visualize the immense scale of the cosmos. Scientists estimate there are billions of galaxies, each containing billions of stars, making the number truly astronomical and humbling.