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 ...
For more than a century, astronomers have been measuring how quickly the universe is flying apart, quietly assuming that with better telescopes and cleaner data, all the numbers would eventually agree. Instead, the opposite is happening. New observations, from ultra-precise space telescopes to clever uses of exploding stars and gravitational waves, are sharpening a ...
Not so long ago, astronomers expected the universe to behave like a ball thrown into the air: expand rapidly at first, then slow down under the pull of gravity. Instead, in one of the most unsettling discoveries of modern science, they found the opposite. The cosmic expansion is speeding up, as if some invisible ...
In the late twentieth century, astronomers set out to measure how fast the universe was slowing down. Instead, they stumbled on something far stranger: the cosmos is not just expanding, it is speeding up, as if some invisible hand were pressing the accelerator. That discovery, confirmed and sharpened over decades, has reshaped modern cosmology ...
Cosmologists have been trying to figure out the different measurements of the universe’s expansion speed for almost ten years. This event, known as the Hubble tension, is a big problem for modern cosmology. Because it is so strange, it changes the basic ideas of cosmology. Now, a radical theory suggests that the answer lies in ...
