For centuries, the night sky has seemed frozen and unchanging, yet time-lapse observations reveal that the universe is in constant motion. From the expanding gas clouds of the Crab Nebula to the ...

A stunning NASA time lapse shows the violent death of a star over 25 years. Chandra X-ray Observatory footage captures Kepler’s Supernova Remnant expanding at millions of miles per hour, revealing how ...

Space scientists have just released spectacular images documenting the death of a star, a process that has been continuously ...

Republicans say it’s long past time for millions of people to pay down their overdue student debt — a message they are trying ...

Decades in the making, NASA's X-ray timelapse shows a stellar explosion expanding into space at up to 2% the speed of light. Reading time 2 minutes A mind-blowing video shows the remnant of an ancient ...

Will two rare supernovas finally tell us how fast the universe is expanding? Perhaps, but we'll have to wait for it for them ...

Astronomers have captured the first radio signals from a rare supernova, revealing intense activity in a star’s final years before it exploded.

ESA's Proba-3 mission, made up of twin spacecraft capable of aligning to create artificial eclipses, has captured "rare" ...

A new time-lapse reveals the Sun’s inner corona glowing a faint yellow, offering a rare look at the hottest layer of our star’s atmosphere. The footage was created using images from the ASPIICS ...

In 1181 AD, a bright "guest star" was observed to linger in the sky for around six months. Nearly 850 years later, the likely remnants of this event were rediscovered and tentatively linked to the ...

Editor’s note: This article was originally published Aug. 13, 2025, and has been updated to include new text and illustrations featured in the January 2026 issue of Astronomy. Using an artificial ...