SUNSET: 
Betelgeuse’s Elusive Companion Might Be Making Waves
In new observations, astronomers detect a moving wake of gas in the outer layers of the red supergiant Betelgeuse, offering fresh evidence for a long-suspected secondary star.
Does Betelgeuse Have a Companion Star?
New analysis of Betelgeuse's brightness variations and other data points to a small, close companion for this giant star.
Is Betelgeuse Fading Again?
Betelgeuse has dipped nearly half a magnitude since late January. Could it be headed for another Great Dimming Event? We also take a look at this spring's "other" eclipse.
Astronomers Watch Another Giant Star Dim
Turns out, Betelgeuse isn't the only giant star to undergo a "Great Dimming."
How Soon Will Betelgeuse Blow?
A new study making the rounds predicts that supergiant Betelgeuse will explode as a supernova sooner rather than later, but others are urging caution.
Catch the Geminid Meteor Shower; Plus, Watch RW Cephei Fade
The luminous Geminid meteor shower returns. We also meet a binocular-bright star that may be experiencing Betelgeuse-like convulsions.
Betelgeuse's Great Dimming: The Aftermath
The Great Dimming occurred when Betelgeuse coughed out a huge chunk of material, and the ejection took a toll on the giant star.
How Big Is Betelgeuse Really?
Knowing Betelgeuse’s size is crucial to understanding its recent bizarre behavior — and predicting when it will go supernova. But it’s harder to figure out than you might think.
The Fall and Rise of Betelgeuse
With its recent uptick in brightness, Betelgeuse appears to be slowly returning to normal. But will it? Astronomers urge us to keep watch.
Is Betelgeuse Approaching a Crossroads?
Astronomers all over are waiting with bated breath to see what Betelgeuse will do next. Is it going to start brightening again on February 21st? Or will it continue to surprise?
The Latest on Betelgeuse, Plus a Bright Supernova and New Comet Iwamoto
The sky provides. This winter, the fading of Betelgeuse caught us all by surprise. Now, as January wraps up, we can add a new comet discovery and a supernova bright enough to see in a 6-inch telescope to an ever-growing list of seasonal sky wonders.
A Quick Tour of Orion, the Hunter
The evening sky this week presents a near perfect opportunity to explore winter's marquee constellation, Orion, with binoculars or a small telescope.
Betelgeuse is Dimming . . . Why?
The bright star Betelgeuse has faded to a historic low as astronomers try to figure out why.
