Astronomers have used a new type of extreme supernova in which a massive star was stripped right "down to the bone" to better ...

The brightest fast radio burst ever detected could help reveal what celestial source causes the mysterious signals and if ...

Experience the awe and wonder of a total eclipse like never before with this stunning totality time lapse. Watch the sky ...

Astronomers at Leiden University have detected rare isotopes of carbon and oxygen in our neighboring stars for the first time ...

A monster galaxy from the early universe shows that the cosmos was rich with oxygen when it was only less than 3% of its ...

Scientists Teleported Light for the First Time in History, Say It Could Done Across Galaxies Since the dawn of astronomy, light has been our time machine. What we see in the night sky is not just ...

St. Augustine said of time, “If no one asks me, I know what it is. If I wish to explain to him who asks, I don’t know.” Time is an elusive concept: We all experience it, and yet, the ...

The sidereal day is defined to be the length of time for the March equinox to return to your celestial meridian. Compare this ...

During the 2025 Smithsonian Folklife Festival, sidewalk astronomers brought a sense of hope into Washington, D.C.

Bianco, associate professor of physics and astronomy and a core faculty member of the Data Science Institute, specializes in transient objects and things that move in the sky — things that appear, ...

Last chance! A rare plane parade is happening on Aug. 21 and it won't happen again until 2028. Here's when and how stargazers can catch a glimpse of this week's stunning spectacle.