TEHRAN (Tasnim) – Astronomers have gotten their best look yet at the surface of a red giant star.

And the 13.5-billion-year-old star just so happens to reside right here in the Milky Way.

Scientists published research related to a red giant star explosion they witnessed in real-time-- a first for the history of astronomy.

Arcturus is 113 times brighter than our sun, even though it's only a little bigger. What else should we know about this red giant?

Remember in late 2019, when the famous red star Betelgeuse suddenly and mysteriously began dimming in brightness? Astronomers studying a similar star - VY Canis Majoris, one of the largest and brightest stars in our galaxy - commented that it's "behaving a lot like Betelgeuse on steroids."

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A star in the dwarf galaxy PHL 293B has disappeared without a trace. How can that happen?

Explore the different kinds of stars that populate the cosmos, from red giants to white dwarfs. See telescopic images of stars and learn about their features and evolution.

Explore the different kinds of stars that populate the cosmos, from red giants to white dwarfs. See telescopic images of stars and learn about their features and evolution.