Red giant
Beyond our galaxy: Astronomers capture first-ever close-up of an extragalactic star
It is the largest known star with a well-defined radius.
Betelgeuse Betelgeuse! Binary Star
Bright star Betelgeuse likely has a ‘betelbuddy’ stellar companion.
A fresh look at red giant stars offers key insights into cosmic distance measurements
A way to measure the Universe's expansion with the highest accuracy.
Astronomers discovered a death-defying planet
The star would have inflated up to 1.5 times the planet’s orbital distance.
Irregularities found in the cores of red giants
Red giant stars experience “glitches” in their inner core.