A perfectly preserved ancient tree fossil offered scientists an unprecedented view into a moment 42,000 years ago when the ...

As sunspots emerge on the sun's surface close to its equator, their orientations will match the old magnetic field, while sunspots forming closer to the poles will have a magnetic field matching the ...

Some speculate that this could presage a flip of the north and south magnetic poles, but scientists say there’s no evidence that any pole reversal is imminent — plus, it would take place over ...

With the right preparations and technological solutions in place, aviation would continue to operate safely, even during a ...

This is because it requires the targeted reversal of the polarity of one of the two carbonyl groups. The key to this new success was the use of a special functional group called a hydrazone ...