Search
Philosophy
Examine life’s biggest questions, from ethics to existence, with curiosity and critical thinking.
There may be a fundamental reason why time travel, backwards, is impossible. We’ve all had the dream of traveling back in time. Whether there’s a wrong we want to right, […]
Our existence is finite, but that’s no reason for despair. Here’s a version of the story we all should hear at least once. This world, and for that matter, the entire […]
For hundreds of millions of years, most of the starlight never made it through space. Here’s how that changed. Forming stars sounds like the easiest thing in the Universe to do. […]
Instead of eternal expansion, could we just be part of a universal cosmic cycle? There are few questions that can keep us up at night the way pondering the eventual fate […]
White dwarfs, neutron stars, and brown dwarfs aren’t actually stars at all. Here’s why. When it comes to stars, there’s a huge variety of different types out there. Our Sun is […]
If the Sun is 93 million miles away, why does sunlight filtering through the clouds or the trees spread out? Rays of sunshine are one of those natural sights that leave […]
LIGO’s enormous arms contract and expand as gravitational waves pass through them. But, puzzlingly, so does the light within them. For the past three years, humanity has known a new kind […]
Our biases, preferences, and ideas of simplicity and elegance can get in the way. Here’s a scientific way to cut through them all. What are the rules governing reality? If you […]
Our Universe may not be all there is, was, or ever will be, after all. There’s been a lot of speculative ideas put forth about the Multiverse, and I dare say […]
Did the Universe begin at time t=0? Did space and time emerge from that? The Universe, today, is expanding and cooling, as the volume of the Universe increases while the number […]
If our current laws of physics can’t predict what will happen, even probabilistically, we need something new. There are two theories we have that explain all the particles and their […]
How ‘special’ are we for life to have survived and thrived the way it did? While there are hundreds of billions of stars in our galaxy, many with Earth-sized planets at […]
Cosmic inflation is what happened before, and set up, the Big Bang. Here’s what it’s like to live in an inflating Universe. Our Universe today is full of matter and […]
There’s no such thing as a theory that’s too beautiful to be wrong, if it doesn’t agree with experiment. The history of physics is filled with great ideas that you’ve […]
The ingredients for life are everywhere, but so far the only life we know of comes from Earth. Here’s how that might change. Ever since human beings first turned our eyes […]