Add Yahoo as a preferred source to see more of our stories on Google. It’s one thing to sketch dragons on the blank edges of a map, but it’s another thing entirely not to even know where the edge is.

The Dark Energy Spectroscopic Instrument (DESI) has completed its originally planned five-year mission and mapped more than ...

Since conventional explanations have failed to pony up dark matter, one physicist is looking towards the unconventional. In a series of two papers, physicist Stefano Profumo of the University of ...

The question of whether the cosmos goes on forever is no longer just a late night thought experiment, it is a live research problem that cuts to the heart of modern physics. Astrophysicists are using ...

How many atoms are there in the observable universe? Current estimates point to a number we would write as 1 followed by 80 zeroes, or 10 80. If you peered inside each of these atoms and counted their ...

The surface of Earth is finite. We can measure it. If it was expanding, then its size would grow with time. And once again, good ol' Earth helps us understand what the universe might be doing beyond ...

The Perseus Cluster is a massive galaxy cluster located in the constellation Perseus. It is one of the largest structures in ...

Benjamin Wandelt, a pioneer at the intersection of cosmology, statistics, and artificial intelligence, is transforming how we extract fundamental physics from astronomical data. Driven by a deep ...

It’s always amazing, and more than a little humbling, when the universe reminds us that our “common sense” is provincial and will fall apart on cosmic scales. If you’re on the surface of Earth—and I’m ...

Cosmologists have an embarrassing problem: we don’t know what shape the universe is. The cosmos has three possible geometries—positively curved like a sphere, flat like an infinite plane or negatively ...