Astronomers observed the fading light of supernova SN 2025kg, which followed the fast X-ray transient (FXT) named EP 250108a.

Ghost particles' can zoom through you without a trace. Scientists are getting to the bottom of this cosmic mystery ...

So much happened in the earliest moments of the universe. Elementary particles appeared, the first nuclei of hydrogen and ...

Space has a way of making scientists throw out their textbooks. Just when astronomers think they understand how the universe ...

In November 1572, a brilliant new star appeared in the constellation Cassiopeia, shining so brightly that it was visible during the day. Danish astronomer Tycho Brahe carefully documented this ...

Evidence of this quantum layer may be coming soon. Here’s what you’ll learn in this story: Physicists are still puzzling over ...

Centuries before anyone pointed a telescope at the sky, Isaac Newton figured out how gravity works. He showed that any object ...

Did Brahe, Kepler, Galileo and Newton make isolated discoveries, or did Islamic science contribute to their work on astronomy ...

The uncertainty inherent to quantum mechanics has long left physicists wondering whether the observations we make on the ...

The Richard F Caris Mirror Lab in Tucson is actually attached to the UA football stadium, with some parts being below seats ...

New peer-reviewed research reporting strange lights in the pre-space-age sky is sparking curiosity and controversy ...

This month prominent peer-reviewed journals have published two papers that link apparent flashes of light seen by a telescope ...