Latest about Expert Voices - Paul Sutter
The 1st few seconds of the Big Bang: What we know and what we don't
Believe it or not, physicists are attempting to understand the universe when it was only a handful of seconds old.
What if Planet Nine is a baby black hole?
The hypothetical Planet Nine may not be a planet but rather a small black hole that might be detectable from the theoretical radiation emitted from its edge, so-called Hawking radiation.
Can super-rotating oceans cool off extreme exoplanets?
New research suggests a way to move heat around "tidally locked" alien planets: ocean currents whipping around the worlds faster than they rotate.
Black holes could be dark stars with 'Planck hearts'
Black holes may not be black or holes, a new theory proposes.
Could there be a cluster of antimatter stars orbiting our galaxy?
We don't know why the universe is dominated by matter over antimatter, but there could be entire stars, and maybe even galaxies, in the universe made of antimatter.
Superpowerful 'oscillon' particles could have dominated the infant universe, then vanished
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.
Mysterious 'kick' just after the Big Bang may have created dark matter
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.
Neutrons' 'evil twins' may be crushing stars into black holes
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.
