The four-year process of casting the sixth of seven primary mirrors for the Giant Magellan Telescope began this month.
How’s the weather up there? Even for exoplanets that are many light-years away, astronomers can learn about their atmospheres.
Multiple researchers suggest that dead magnetic stars have likely been behind the rare, intense bursts of radio waves that began in 2007.
Scientists may soon be able to observe a dramatic, long-predicted consequence of Einstein’s theory of general relativity.
Puzzling planets with the apparent density of cotton candy probably have rings, according to a new study.
That’s when the two stars in the binary system V Sagittae are set to merge in a spectacularly luminous fashion.
The SETI Institute leads the hunt for extraterrestrials, which has entered a new phase with myriad planets to focus on.