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Universe
Nearly 30 would be "nones" — an amorphous group that spans from zealous atheists to the vaguely spiritual.
From the Big Bang to a prior period of cosmic inflation, our cosmic origins are clearer than ever. Yet these 5 big mysteries still remain.
How to look cool in post-war France in black and white photos.
The red planet, Mars, may once have been teeming with life, just as Earth is today. Finding "organics" on Mars, however, doesn't mean life.
The Holy Grail of physics is a Theory of Everything: where a single equation describes the whole Universe. But maybe there simply isn't one?
As we look to larger cosmic scales, we get a broader view of the expansive cosmic forest, eventually revealing the grandest views of all.
In the search for life in the Universe, the ultimate goal is to find an inhabited planet beyond Earth. How will we know when we've made it?
The relic signal that first proved the Big Bang has been known and analyzed for 60 years. Join us at the frontiers of modern cosmology!
19mins
"It's a very, very beautiful calculation, but it's the best example I know of the relationship between these rather abstract quantities perhaps and something that you can look at in a telescope."
For over 50 years, it’s been the scientifically accepted theory describing the origin of the Universe. It’s time we all learned its truths.
2mins
We may be close to finding life beyond Earth. But would we even recognize it if we did? Astrobiologist Betül Kaçar explains what signs NASA is looking for.