"A New Surprise in the Accelerating Universe" by Dr. Alex Filippenko
ZoomIn 1998, two essentially independent research teams made a Nobel-worthy discovery: since distant supernovae (exploding stars) were fainter than predicted, the expansion of the Universe must be speeding up rather than decelerating. Since then, the evidence for cosmic acceleration, propelled by mysterious “dark energy” that constitutes 70% of the contents of the Universe, has grown […]