Our coverage sheds light on the boundless darkness, the physical violence and the mysterious, awesome reaches of our universe. We ponder how it all began and about our place in the cosmos: Are we alone? Is there life on other planets? Will interplanetary travel save the human race? We also explore space through images, videos and illustration.
The SETI Institute leads the hunt for extraterrestrials, which has entered a new phase with myriad planets to focus on.
Data from the second probe to reach interstellar space helps scientists form a more complete picture of the boundary between the sun and the stars.
Researchers find plausible, alien-free explanation for observations of star KIC 8462852.
New research suggests the interstellar interlopers may indicate the presence of a vast number of as yet undetected giant exoplanets.
Planet K2-18b is about twice as wide as Earth and located about 110 light-years away.