Are You Made of Hydrogen from the Big Bang? Video Watch time under 1 minute October 16, 2025 Image Astrophysicist Erika Hamden breaks down how the hydrogen in your body was likely formed within the first 20 minutes after the Big Bang. That’s when the universe cooled enough for subatomic particles to come together and form the very first atoms. This isn’t just stardust, it predates stars entirely. The same hydrogen forged in that cosmic moment is still flowing through you today! Topics Space Sciences Women in STEM Share