News Astronomy

Two stars’ close encounter may explain a cosmic flare that has barely faded

Simulations suggest how a mysterious outburst of light has endured for 85 years

image of a FU Orionus

A double star called FU Orionis (shown at center) flared up in 1936 and is still shining brightly today.

ESO

By Ken Croswell

- More than 2 years ago

A newborn star whizzing past another stellar youngster triggered a cosmic flare-up that began nearly a century ago and is still going strong today, researchers say.