Black holes: they’re dense, elusive, light-absorbing pockets of spacetime that are critical to our understanding of the universe. Subscribe for free to get all episodes of NOVA Now on Apple Podcasts at https://apple.co/2U5GyYp But black holes are difficult to peer into, so there’s a lot scientists still don’t know. This […]
For tens of thousands of years, humans have pondered eternal questions like “How does our world even exist?” and “Where did we come from?” Now, more than ever, scientists are finding answers within the Big Bang theory. Subscribe for free to get all episodes of NOVA Now on Apple Podcasts […]
This pretzel-shaped collection of galaxies is our Universe. And it’s about to collide with another universe. It might be fascinating to watch, but we should probably be worried about what’s going to happen when they crash. How would it change the physics of our Universe? Is there any chance that […]
Twinkle, twinkle, little star. How I wonder what you, wait a minute, why are you twinkling so much? Um, guys, that’s no diamond in the sky. That looks like a supernova. As much as we love to blow stuff up here on Earth, no bombs or pyrotechnics could compare to […]
Just 3,000 light-years from Earth is a black hole visible to the naked eye. Thankfully, we are a safe distance from this stellar black hole and many others like it. There are approximately 100 million of them out there in our galaxy that we know of. They are the remnants […]
Get 20% off your first order: https://trycaliper.com/whatif You can try Caliper CBD risk-free for 30 days. If you don’t love it, they’ll give you a full refund! We can thank the Moon for predictable weather, ocean currents and the circulation of important nutrients. The Moon also helps stabilize the Earth’s […]
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A rogue star is headed straight for our Sun. If these two stars slam into each other, it could spell the end of all life on our planet. How could a rogue star end up in our Solar System? What would this epic collision look like? And how much time […]
Thanks to Established Titles for sponsoring this video! Get 10% off on any purchase with code WhatIf. Go to https://establishedtitles.com/WhatIf and help support the channel! Some of the planets in our Solar System are gigantic. But what if they got even bigger? Let’s go up the planetary size chart and […]
