In a “normal” electrocardiogram (ECG), the transition of the QRS axis in the precordial leads occurs between leads V 3 and V 4 (i.e., there is a dominant S in V 3 and a dominant R in V 4).

About half of all spiral galaxies appear to be rotating clockwise and the other half counterclockwise. The direction a galaxy rotates depends on your perspective. As an analogy, consider a spinning ...

Spiral galaxies imaged by JWST that rotate in the same direction relative to the Milky Way (red) and in the opposite direction relative to the Milky Way (blue). The number of galaxies rotating in the ...

The Laser Interferometer Gravitational-Wave Observatory (LIGO) has been able to detect a gravity wave wafting through space from two colliding black holes billions of years ago. Now a group has built ...

Sixty percent of the oldest known galaxies seem to be rotating clockwise an asymmetry so extreme that one scientist described “any person looking at the image can see it.” The result, based on 263 ...