What are the mysterious dark matter and dark energy that seem to account for so much of our universe? Why is the universe expanding? For the past 30 years, most cosmologists have looked to the ...

A new study questions dark energy's role in the universe's acceleration, suggesting it may be weakening instead.

Early 20th-century cosmology transitioned from galactic astronomy with Edwin Hubble's discovery of external galaxies and the universe's expansion, which Albert Einstein's general relativity later ...

In this video, Arvin Ash explores the history of the universe from the Big Bang to modern cosmology. Key discoveries include: ...

After a multi-decade-year mission to understand the nature of the universe, a telescope perched in the mountain plateaus of northern Chile said goodbye in 2022. Now, its final data release is ...

Imagine you wanted to know everything you could about the Universe. You'd want to find the answers to questions of all types, such as: What is the Universe made of? How big is the entire Universe? How ...

Dark matter has never been detected, yet it is a key part of the dominant theory of cosmology. An alternative theory, MOND, is empirically equivalent and more successful at making predictions. But the ...

Science is advancing rapidly. We are eradicating diseases, venturing further into space and discovering a growing zoo of subatomic particles. But cosmology – which is trying to understand the ...

While headlines around the world claimed that ancient galaxies discovered by the James Webb Space Telescope were "breaking" our understanding of the Big Bang, the truth is much more nuanced — and much ...

These remarks owe their existence to a suggestion of Dr R. Mullen of Science-Fiction Studies, who received a review copy of Cosmology Now (ed. Laurie John, Taplinger Publishing Co., 168p, $10.95) but ...

John Gilbey goes on the road in the US far west to refine the science in his fiction. I was looking for a man with a small dragon perched on his shoulder, but the low atmospheric pressure made even ...