For more than a century, physics has been built on two great theories. Einstein's general relativity explains gravity as the bending of space and time.
General Physics
Sep 24, 2025
7
188
Dark energy—the term used to describe whatever is causing the universe to expand at an increasing rate—is one of the universe's greatest mysteries. The most widely accepted theory currently suggests that dark energy is ...
Astronomy
Sep 15, 2025
120
117
For generations, humans have gazed at the stars and wondered about the ultimate fate of the universe. Will it expand forever into the cold emptiness, or meet a more dramatic end?
Astronomy
Jul 6, 2025
15
40
The birth, growth and future of our universe are eternally fascinating.
Astronomy
Jun 30, 2025
17
81
The great Russian physicist and Nobel laureate Lev Landau once remarked that "cosmologists are often in error, but never in doubt." In studying the history of the universe itself, there is always a chance that we have got ...
Astronomy
Apr 3, 2025
14
64
Dark energy is a mystery so daunting that it stretches and strains our most robust theories. The universe is expanding, driven by the unknown force that we've named Dark Energy. Dark Energy is also accelerating the rate of ...
Astronomy
Mar 21, 2025
0
40
A new study using the Dark Energy Survey (DES) final datasets suggests potential inconsistencies in the standard cosmological model, known as ΛCDM. If confirmed, these findings could fundamentally alter our understanding ...
Astronomy
Mar 19, 2025
3
89
A new study in published in Physical Review Letters analyzes the most complete set of galaxy clustering data to test the ΛCDM model, revealing discrepancies in the formation of cosmic structures in the universe, hinting ...
,As I finished my Ph.D. in 1992, the universe was full of mystery—we didn't even know exactly what it is made of. One could argue that cosmologists had made little progress in our understanding of these basic facts since ...
Astronomy
Oct 10, 2024
27
44
For the past few years, a series of controversies have rocked the well-established field of cosmology. In a nutshell, the predictions of the standard model of the universe appear to be at odds with some recent observations.
Astronomy
Sep 15, 2024
3
148
