This Mysterious Cosmic Substance May Be Older Than the Universe Itself—And It Just Might Be Immortal
created: April 4, 2025, 8:01 p.m. | updated: April 11, 2025, 11:42 a.m.
<p>It drives the movements of stars and galaxies, but dark matter is invisible. While it remains a colossal mystery, a study revealed how staggering its age could be.</p>
8 months, 2 weeks ago: Latest Content - Popular Mechanics