Hey Bill Nye! Does the Universe Go on Forever?

Young Aaron asks the Science Guy about the uncountable lengths of space. Bill responds with a challenge.

Aaron Hernandez: Hi Bill Nye the Science Guy. I’m Aaron the Science Guy and I want to know why does space go on forever?

Bill Nye: Aaron the Science Guy. Good to see you. Why does space go on forever? That’s a great question. It’s a deep question and no one really knows the actual answer to that. Maybe you’ll be the one that figures it out. The nearest we can tell, the farther we look into space, the farther it seems to go. With that said we can see that all the stars are moving apart and so people have figured out that they must have all been in one place about 13.6 billion years ago. And so people can observe light that we believe is 13.5 billion years old. But nobody knows what’s beyond that or if it’s even a meaningful question to ask what’s beyond that. Like what would the world be like if there were no world? It would be different. And so these are deep, deep questions and the people who think about these questions are called astrophysicists. They study the motion of stars. "Physics" is the study of motion and "astro" has to do with stars. So perhaps you will be an astrophysicist who figures this out. Cool question.

In this week's edition of #TuesdaysWithBill, Young Aaron asks the Science Guy about the uncountable lengths of space. Why is it like that? Why is it so big?


Bill responds with a challenge. No one really knows the answer now, so maybe Aaron can become an astrophysicist some day and find out.

How to make a black hole

Here's the science of black holes, from supermassive monsters to ones the size of ping-pong balls.

Videos
  • There's more than one way to make a black hole, says NASA's Michelle Thaller. They're not always formed from dead stars. For example, there are teeny tiny black holes all around us, the result of high-energy cosmic rays slamming into our atmosphere with enough force to cram matter together so densely that no light can escape.
  • CERN is trying to create artificial black holes right now, but don't worry, it's not dangerous. Scientists there are attempting to smash two particles together with such intensity that it creates a black hole that would live for just a millionth of a second.
  • Thaller uses a brilliant analogy involving a rubber sheet, a marble, and an elephant to explain why different black holes have varying densities. Watch and learn!
  • Bonus fact: If the Earth became a black hole, it would be crushed to the size of a ping-pong ball.

Russian reporters discover 101 'tortured' whales jammed in offshore pens

Protected animals are feared to be headed for the black market.

(VL.ru)
Politics & Current Affairs
  • Russian news network discovers 101 black-market whales.
  • Orcas and belugas are seen crammed into tiny pens.
  • Marine parks continue to create a high-price demand for illegal captures.
Keep reading Show less

China’s artificial sun reaches fusion temperature: 100 million degrees

In a breakthrough for nuclear fusion research, scientists at China's Experimental Advanced Superconducting Tokamak (EAST) reactor have produced temperatures necessary for nuclear fusion on Earth.

Credit: EAST Team
Surprising Science
  • The EAST reactor was able to heat hydrogen to temperatures exceeding 100 million degrees Celsius.
  • Nuclear fusion could someday provide the planet with a virtually limitless supply of clean energy.
  • Still, scientists have many other obstacles to pass before fusion technology becomes a viable energy source.
Keep reading Show less