SCIENCE
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Why scientists can’t stop searching for alien life
There will always be “wolf-criers” whose claims wither under scrutiny. But aliens are certainly out there, if science dares to…
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Ask Ethan: Why does something exist instead of nothing?
Perhaps the most remarkable fact about the Universe is simply that it, and everything in it, exists. But what’s the…
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Does our physical reality exist in an objective manner?
We think of physical reality as what objectively exists, independent of any observer. But relativity and quantum physics say otherwise.…
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How recently have we understood the Universe?
While humanity has been skywatching since ancient times, much of our cosmic understanding has come about only recently. Very recently.…
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Ask Ethan: Can stars form within the expanding Universe?
Our Universe doesn’t just expand and cool, but the expansion itself is accelerating. Can stars form under such structure-erasing… Continue…
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As 2025 ends, the Standard Model still hasn’t cracked
Our Standard Model of the Universe, for both particle physics and cosmology, remains intact for now. When will its foundations…
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Starts With A Bang podcast #124 — Astrochemistry
It takes a wide variety of processes in the Universe to make all the elements that populate space today. We’re…
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Gravitational lensing is amazing, but won’t solve the Hubble tension
The method you use to measure the expanding Universe determines which of two answers you’ll get. Lensed supernovae can’t resolve…
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Ask Ethan: Can we ever observe a proton decaying?
As the lightest baryon in the Universe, the proton is thought by many to be eternally stable. But if it…
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New discovery sets humanity up to image “alien Earth”
Finding alien Earths requires seeing Earth-sized planets at Earth-like distances from Sun-like stars. A new discovery completes the… Continue reading…
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