PBS Space Time
Are We Alone? Galactic Civilization Challenge
Everything we’ve learned about our universe tells us that it is very unlikely we are alone
PBS Space Time
Self-Replicating Robots and Galactic Domination
We’ll soon be capable of building self-replicating robots.
PBS Space Time
Should We Build a Dyson Sphere?
The Kepler telescope recently found a strange partial eclipse...possibly a Dyson Sphere.
PBS Space Time
Life on Europa?
The can the Hubble Telescope tell us about the potential for life on Europa?
PBS Space Time
The Final Barrier to (Nearly) Infinite Energy
Why are billions suddenly being pumped into fusion startups?
PBS Space Time
Will The Big Bang Happen Again (and Again)?
What if the Big Bang was just an endless cycle?
PBS Space Time
Why Is All DNA Right Handed?
It may be that our very DNA inherited its twist from the underlying handedness of reality.
PBS Space Time
At What Point Does Spacetime Become Quantum?
How to build a particle collider the size of the solar system.
PBS Space Time
Why Life on Mars Will Doom Humanity
Life on mars could result in humanity’s destruction via Fermi Paradox.
PBS Space Time
Why Antimatter Engines Could Launch In Your Lifetime
Antimatter drives sound like science fiction, but they may not be as far as you think.
PBS Space Time
Do We Live in the Rarest Solar System In The Universe? We're about to find out!
We’ve found lots of “habitable” worlds but we don’t know what factors are needed for life.
PBS Space Time
Martian Soil Is Deadly. And That's Why It Might Support Life
Tardigrades can survive almost anything—even most of Mars. But one Martian chemical stops even them.
PBS Space Time
Earth’s Core Should Be Impossible. A New State of Matter Explains It.
Earth's core: solid or liquid? Yes — we know more about distant galaxies than our own interior.