Betelgeuse, the red supergiant that marks Orion’s shoulder, has entered its dimmest phase in recorded history, sparking ...

Thomas Mulligan explains why blue supergiant stars live fast and die in spectacular cosmic explosions. Donald Trump's approval rating fades after "big, beautiful bill" Why aren’t Italians as obese as ...

Bluish-white Regulus in Leo is moving toward the western horizon and sets around 10 p.m. in mid-July, followed a couple of ...

Our satellite hangs out with the heart of the Scorpion, known for its vivid red hue as the Rival of Mars in our sky.

The largest and brightest is an enormous supergiant star about 100 times the mass of the Sun and five million times brighter.

To get a glimpse of the “Swift Planet,” EarthSky suggests waiting for the sun to set before looking west for the planet ...

The star’s name is WOH G64, offering rare onomatopoeic satisfaction for sounding exactly like what you might say when you see the image for the first time. The star is a red supergiant (like the ...

The supergiant star Betelgeuse may have a companion star that pushes light-blocking dust out of the way, causing the irregular changes observed in the star's brightness.

This companion star model helps explain the different patterns of pulsating light observed from Betelgeuse. The star exhibits two separate periods of brightening and dimming: one that pulses on a ...

A new study suggests a stellar companion orbits the supergiant star Betelgeuse and moves light-blocking dust in its path, which could explain the star's irregular changes in brightness.

While LSPs aren’t uncommon among stars, they’re rarely seen in red supergiants like Betelgeuse, and scientists aren’t exactly sure what is causing this phenomenon in the famous fireball.

Yet blue supergiants, some of the most massive stars, are lonely. The reason for this may be that blue supergiant stars exist in systems in which the occupants have already spiraled together ...