We see you, baby star! 🤩 Since modern astronomical observations began, we've been studying the subtle changes that happen in the birthplaces of stars and planets. Cosmic timescales can be very long, however the celestial objects in this NASAHubble photo have changed in a relatively short amount of time. The bright spot located at the right edge of the fan-shaped object is a young star nicknamed “PV Cep.” A photo of PV Cep taken in 1952 showed a nebulous streak, similar to a comet’s tail, but this had vanished by the time new images of the star were obtained some 25 years later. Instead, the blue fan-shaped nebula seen here had appeared. Twenty-five years is a very short period on cosmic timescales! Astronomers think the mysterious streak may have been a temporary phenomenon – perhaps the remnants of a massive stellar flare. PV Cep is located in the northern constellation of Cepheus at a distance of over 1600 light-years from Earth. Credit: ESA/Hubble & NASA. Acknowledgement: Alexe...