Not long ago, many astronomers quietly assumed the universe’s expansion was slowing down, like shrapnel from a blast gradually tugged back by gravity. Then, in the late nineteen‑nineties, two teams studying dying stars stumbled on a result so unsettling that some thought they had made a mistake: distant galaxies were not just receding, they ...
Physics is often sold as the discipline that has everything figured out, from falling apples to orbiting planets to humming power grids. Yet behind the smooth equations lies a messier reality: some of the most basic questions about the universe remain disturbingly open. We do not know what most of the cosmos is made ...
You live in a universe dominated by something you can’t see, touch, or measure directly. It’s not some abstract philosophical concept. It’s real, and it makes up nearly seventy percent of everything that exists. We call it dark energy, and honestly, we have no clea what it actually is. Think about that for a second. ...
For more than a century, astronomers thought they had a decent grasp on how fast the universe is growing. Now, that confidence has cracked. Precise new measurements of cosmic expansion disagree in a way that stubbornly refuses to go away, hinting that something deep in our understanding of physics may be missing. What began ...
Imagine a mysterious force making up approximately 68% of everything that exists, yet remaining completely invisible and impossible to directly detect. This isn’t science fiction – it’s one of the greatest puzzles in modern physics, a cosmic enigma that’s keeping scientists awake at night and challenging everything we thought we knew about the universe. Dark ...
Cosmologists have believed for a long time that dark energy the mysterious factor that accelerates the expansion of the universe–was a constant, indestructible presence. However, the latest information obtained from the Dark Energy Spectroscopic Instrument (DESI) indicates this is not the situation. Instead, the impact of dark energy may diminish as time passes, a finding ...
