SCIENCE
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Why “galactic archaeology” is not archaeology at all
Astronomers study our cosmic history through stellar and galactic archaeology. But we can’t conduct archaeology in space. At least, not……
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Ask Ethan: Is the Universe the same age everywhere?
Today, in the here-and-now, a full 13.8 billion years have elapsed since the start of the hot Big Bang. But…
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Cosmic beacon unveiled inside nearby active galaxy by JWST
Messier 77 is one of the largest nearby spiral galaxies, with an active, brilliant core. Here’s what JWST’s incomparable eyes…
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Starts With A Bang podcast #129 — Triton and the outer solar system
Triton is Neptune’s largest moon today, but it was once the undisputed king of the Kuiper belt. Here’s why the…
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Why science has abandoned the existence of the aether
Contrary to common experience, not everything needs a medium to travel through. Overcoming that assumption removes the need for an…
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Supermassive black holes launch the most powerful cosmic jets
From within our own galaxy to behemoths billions of light-years away, supermassive black holes create jets like nothing else in…
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Ask Ethan: How can ultra-distant galaxies move so fast?
It takes incredible energies to accelerate masses near the speed of light. So how do the farthest galaxies speed away…
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The challenge of celebrating Artemis II as NASA cuts loom
NASA has just sent astronauts back to the Moon for the first time since 1972 with Artemis II. So why…
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Ask Ethan: What’s the biggest misconception in astronomy?
Many facts are well-known to professionals, but are unappreciated or even rejected outright by the public. “How stars work” takes…
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Only antimatter provides the energy we need for interstellar travel
Our dream of journeying to other star systems has a big obstacle to overcome: the vast interstellar distances. Can antimatter…
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