Our Solar System with the scale given in Astronomical Units (NASA/JPL) 1 AU is about 499 light seconds. 1 light year is about AU. 1 parsec is about AU. Voyager 1 is now more than 94 AU away from Earth, and Voyager 2 has traveled more than 84 AU.
A new look at the nature of dark matter: A new study suggests that the gravitational waves detected by the LIGO experiment must have come from black holes generated during the collapse of stars and not in the earliest phases of the Universe
NGC Detail Hubble's Advanced Camera for Surveys shows individual as well as clusters of stars in the spiral galaxy NGC located approximately 7 million light-years away from Earth. NASA, ESA, J. Dalcanton and B. Williams (University of Washington)