Farther north in the sky is a more typical red giant star, Aldebaran in Taurus. Aldebaran looks much like the sun will look in about 5 billion years, when it has converted most of its hydrogen to ...

One is a cool dying star called a red giant, which has burnt through its hydrogen and has hugely expanded—a fate that is awaiting our own sun in around five billion years. The other is a white ...

It's also dubbed the "most spotted star in the sky." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Betelgeuse, one of the brightest stars in the night sky, may not be alone. And its potential companion may be responsible for ...

The brightest star in the night sky belongs to Sirius, or "Dog Star," whose magnitude is -1.46, says Space.com. Astronomers believe that T Crb is 3,000 light-years away from Earth.

It's actually five stars in a complex star system about 162 light-years distant, according to EarthSky. Also in Lyra is the famous Ring Nebula (M57), the beautiful blue-green ring-shaped remains ...

The star, named WD 0525+526, is located about 128 light-years from Earth. Though it appeared rather standard at first glance ...

Using observations from NASA’s Transiting Exoplanet Survey Satellite (TESS), astronomers have identified an unprecedented collection of pulsating red giant stars all across the sky. These stars ...

T Coronae Borealis, otherwise known as the “Blaze Star,” is a binary system in the Corona Borealis that includes a dead white dwarf star and an aging red giant star. Red giants form when stars ...

Learn more about what a star’s color means and while you’ll never see a twinkling green star in the night sky.

In the mass map, green, yellow, orange, and red show where giant stars average more than 1.4 times the Sun’s mass. Such stars evolve faster than the Sun, becoming giants at younger ages.