New research from theoretical physicists at the Perimeter Institute proposes that our universe may have emerged from a black hole in a higher-dimensional universe. The big bang poses a big question: if it was indeed the cataclysm that blasted our universe into existence 13.7 billion years ago, wh

The challenges of interstellar travel are immense. However, one scientist has proposed an easier (albeit very slow) way to move between stars: let free-floating planets carry us. If she's right, it could change how we search for life elsewhere in the universe.

Astronomers have created a 3D map of a cosmic structure so gigantic that it's almost impossible to even comprehend. The "South Pole Wall" is a flabbergasting 1.4 billion light years across and contains hundreds of thousands of galaxies, Live Science reports.

(Image credit: NASA/ Q.D. Wang) Gaze up at the Sagittarius constellation, and you are looking at the center of the galaxy. It may not look like much to the naked eye (especially if a bunch of is blocking your view), but to the world's sharpest and telescopes, the archer hides a chaotic collage of black holes , exploding stars, magnetic fields and inexplicable bubbles of gas.

A subatomic particle has been found to switch between matter and antimatter, according to Oxford physicists analyzing data from the Large Hadron Collider. It turns out that an unfathomably tiny weight difference between two particles could have saved the universe from annihilation soon after it...

Has the State of Israel made contact with aliens? According to retired Israeli officer and current professor Haim Eshed, the answer is yes, but this has been kept a secret because "humanity isn't ready."

Matter is what makes up the universe, but what makes up matter? This question has long been tricky for those who think about it - especially for the physicists. Reflecting recent trends in physics, my colleague Jeffrey Eischen and I have described an updated way to think about matter.