Physics
Planck “Star” to Arise From Black Holes?
A new paper has been posted on the arxiv (a repository of research preprints) introducing the idea of a Planck star…
How A Laser Appears To Move Faster Than Light (And Why It Really Isn’t)
We at Universe Today often hear theories purporting that Einstein is wrong, and perhaps one of the most common things…
Why Hawking is Wrong About Black Holes
A recent paper by Stephen Hawking has created quite a stir, even leading Nature News to declare there are no black…
How We Know Gravity is Not (Just) a Force
When we think of gravity, we typically think of it as a force between masses. When you step on a…
Black Holes No More? Not Quite.
Nature News has announced that there are no black holes. This claim is made by none other than Stephen Hawking, so…
Why Is the Solar System Flat?
It's no mystery that the planets, moons, asteroids, etc. in the Solar System are arranged in a more-or-less flat, plate-like…
Why Einstein Will Never Be Wrong
One of the benefits of being an astrophysicist is your weekly email from someone who claims to have “proven Einstein…
New Findings from NuSTAR: A New X-Ray View of the “Hand of God” and More
One star player in this week’s findings out of the 223rd meeting of the American Astronomical Society has been the…
Why Our Universe is Not a Hologram
Editor's note: This article was originally published by Brian Koberlein on G+, and it is republished here with the author's…
Could Particle ‘Spooky Action’ Define The Nature Of Gravity?
Quantum physics is a fascinating yet complicated subject to understand, and one of the things that freaks out physics students…