How Thick Is the Milky Way (and What Defines the Galactic Plane?)
The Milky Way does not have a single fixed height, but near the Sun most disk stars lie within about…
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What Is a Triple-Galaxy Merger and How Does It Work?
A triple-galaxy merger is when three galaxies are colliding and will eventually combine into one larger galaxy. It happens through…
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What Is the “Dark Photon” Theory of Light and Does It Upend Quantum Mechanics?
The “dark photon” theory of light, as described in recent viral posts, is not a new particle and it does…
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New Analysis Claims The Universe’s Expansion Has Already Slowed
For a quarter-century, the cosmos seemed settled on one astonishing point: the Universe is not just expanding, it is accelerating….
