Transplanting dopamine-releasing neurons into the brain is a promising regenerative therapy for Parkinson’s disease. Two clinical trials show that it is safe, but more evidence is needed to ...

Soon, photos of the fireball edited with cartoon characters and political jokes flooded the internet. Scientists across Mexico were quick to note that the object rocketing across the skies was not ...

MEXICO CITY (AP) — A bright object, initially appearing to be a meteorite, lit up the skies over Mexico’s capital around 3 a.m. Wednesday, stretching over plains, volcanoes and small towns.

Soon, photos of the fireball edited with cartoon characters and political jokes flooded the internet. Scientists across Mexico were quick to note that the object rocketing across the skies was not a ...