Betelgeuse, a massive star in the Orion constellation, is dimming. Could it be about to explode in a spectacular supernova? What would that look like here on Earth?
Scientists may have discovered a fifth fundamental force of nature. But it’s an extraordinary claim requiring extraordinary evidence. What does it all mean?
Many of these space travelers are, of course, NASA astronauts. That means they went through a rigorous application and training process. So, what exactly does it take to be an astronaut?
There’s a mysterious rock traveling through our solar system. Could it in fact not be a rock at all, but an alien probe?
How much is Mars really like Earth? Could our solar system neighbor become a travel destination in the future? Could we live there? Everyday Einstein investigates the Martian habitat.