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Starts With A Bang #16: How fast is the Universe expanding?
The discovery almost 100 years ago that the Universe was expanding was a revolution for science, for cosmology and for our conception of existence. H…
9 years, 1 month ago
Starts With A Bang #15: Is our Universe the inside of a black hole?
Black holes are incredibly massive objects that are so dense that, from within a given region of space, nothing can escape, not even light. Yet it's …
9 years, 2 months ago
Starts With A Bang #14: Are Parallel Universes Real?
Ever since we first uncovered the quantum nature of our Universe, humanity has struggled to interpret it. Is there a wavefunction that collapses? Is …
9 years, 3 months ago
Starts With A Bang #13: How Many Galaxies Are In The Universe?
Did you hear the news, that it isn't "billions and billions" anymore, but that there are TWO TRILLION (or 2,000,000,000,000) galaxies in the observab…
9 years, 4 months ago
Starts With A Bang #12: Exoplanets, beyond our Solar System and Proxima b
For thousands upon thousands of years, we didn't know whether the other stars in the Universe were even like our Sun, much less whether they had plan…
9 years, 5 months ago
Starts With A Bang #11: Was The Big Bang The Beginning Of The Universe?
Our Universe has been expanding and evolving since the hot, dense, expanding state known as the Big Bang first came to be. But there was a "day witho…
9 years, 6 months ago
Starts With A Bang #10: The Last Star In The Universe
While there are presently more than ~10^23 stars in the Universe shining today, each one of them is fated to live only for a finite amount of time. W…
9 years, 7 months ago
Starts With A Bang #9: Interstellar Travel
Ever since humanity had the thought that the distant, twinkling stars might be Suns like our own, with their own planetary systems and chances at lif…
9 years, 8 months ago
Starts With A Bang #8: What is Dark Energy?
How will the Universe end? Will it recollapse in on itself, ending in a Big Crunch? Will it expand forever, ending in a Big Freeze? Or will it tear i…
9 years, 9 months ago
Starts With A Bang #7: Our Solar System's Planet Nine
Could there be a ninth planet in our Solar System, farther out than Neptune? Recent evidence points to a tantalizing possibliity, and searches are un…
9 years, 10 months ago