Expert Voices: Op-Ed & Insights

What would a universe flooded with primordial black holes look like?

With its frigid temperatures, remoteness from the sun and general dustiness, changing Mars to be more Earth-like is more challenging than it seems (and it already seems pretty tough).

Theories that attempt to resolve the so-called black hole information paradox predict that black holes are much more complicated than general relativity suggests.

Albert Einstein described Emmy Noether as a "creative mathematical genius" who, despite "unselfish, significant work over a period of many years," did not get the recognition she deserved.

If some UAP turn out to be extraterrestrial technology, they could be dropping sensors for a subsequent craft to tune into. What if ‘Oumuamua is such a craft?

Space is big — really big. And if you want to successfully navigate the interstellar depths of our galaxy, you're going to need some sort of reliable system.

How much energy can be created at one time without losing control?

A recent study claims to have found evidence for mushroom-like life forms on the surface of Mars.

Statistics tell us that individuals are most likely to be somewhere around the middle part of their life. The same could be true of the human race.

For decades, cosmologists have wondered if the large-scale structure of the universe is a fractal — that is, if it looks the same no matter how large the scale.

Believe it or not, physicists are attempting to understand the universe when it was only a handful of seconds old.

New research suggests a way to move heat around "tidally locked" alien planets: ocean currents whipping around the worlds faster than they rotate.

A weird, super-powerful particle that's not truly a particle could have dominated the universe when it was just a second old, releasing a flood of ripples that permeated all of space-time.

A mysterious "kick" in the early universe may have produced more matter than antimatter. And that imbalance may have also led to the creation of dark matter, researchers now say.

The universe may be filled with "mirror" particles — and these otherwise-undetectable particles could be shrinking the densest stars in the universe, turning them into black holes.

Surprisingly, the fate of a star is easy to predict. All you need to know is how big it is.

There have been no signs of supersymmetry, and the theory is looking a little shaky, researchers say.

New research proposes that the first black holes came from clumps of gravitinos, exotic, hypothetical particles that managed to survive the first chaotic years of the Big Bang.

What if there is more than one cosmological agent for dark energy? This mixture would have strange effects in our universe, making it potentially detectable with upcoming surveys.