KB: We asked ourselves, "what obliquity, what misalignment would Planet Nine induce in the solar system?" because it must induce some. We know that Planet Nine's orbit in inclined. As a result, when Planet Nine torques the rest of the solar system, the two sort of act as two precessing tops.

(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...

Much remains unknown to scientists about the era immediately following the big bang, when the universe was hot, dense, and devoid of spiral galaxies like our modern Milky Way. Consequently, it's difficult to pin down when the first complex galaxies were born. But we're beginning to close this cosmic gap of empirical darkness.

The Milky Way hasn't been kind to the Sagittarius dwarf galaxy. Located some 70,000 light-years away, the bundle of stars has been shredded and stretched into a filamentous stream by the gravity of the Milky Way.

In celebration of 150 years of exploration, the editors of the British scientific journal Nature asked Northeastern's Center for Complex Network Research to analyze, categorize, and ultimately visualize tens of thousands of articles. The end result is nothing short of cosmic.