The spacecraft is set to venture into the gap between Saturn and its innermost ring 22 times until Sept. 15, then crash into the planet.
The planet, about 40 light years from Earth, is close enough that astronomers hope they will someday be able to probe its atmosphere for signs of water or other evidence of suitability for life.
A new series on the National Geographic Channel introduces viewers to the man behind the cuddly accent and the curvatures of space-time.
Astronomers are puzzled by X-rays that for a brief time were a thousand times brighter than all of its home galaxy’s light.
Dr. Drever, a Scotsman long associated with Caltech, played a key role in the detection of gravitational waves — space-time ripples predicted by Einstein.
Far away, in a constellation called Sculptor, astronomers have glimpsed the universe’s oldest dust. It’s 13.2 billion years old.
New images from the Hubble Space Telescope have been released of the supernova called SN1987A, first detected in February 1987.
A small discrepancy in the value of a long-sought number has fostered a debate about just how well we know the cosmos.
Researchers say the bursts could be caused by reactions between a neutron star and debris, or perhaps from some unexpected quirk of a supermassive black hole in the center of the galaxy.
The Pan-Starrs telescope on the island of Maui released an astronomical survey that includes two petabytes of data, roughly equivalent to a billion selfies.