Binary stars

An illustration of the red supergiant star Betelgeuse, its companion star, and a dusty wake. The disk of a red-orange star is in the center. It is surrounded by a diffuse orange cloud representing its extended atmosphere. Below it about one stellar diameter away is a yellow dot representing a smaller companion star. From the companion, a dark red cloud wraps around in a counterclockwise direction. It begins very narrow and expands as it gets further from the companion, finally disappearing at the outer edge of the diffuse orange cloud around 10 ou2019clock. The words u201cartistu2019s conceptu201d are at lower right.

January 5, 2026

Using new observations from NASA’s Hubble Space Telescope and ground-based observatories, astronomers tracked the influence of a recently…

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December 14, 2025

Astronomers have confirmed a giant planet orbiting a tightly bound pair of young stars, marking a first in…

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This Star Is Being Eaten Alive—and Its Explosive Death Will Be Visible in Broad Daylight

December 14, 2025

A case of astronomical fratricide is doomed to end in a fiery supernova bright enough to be spotted…

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TESS finds three Earth-sized exoplanets orbiting binary stars

November 10, 2025

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Betelgeuse's Newfound Companion Star Keeps Breaking Astronomy Rules

October 24, 2025

A couple months back, astronomers officially confirmed the existence of “Betelbuddy,” Betelgeuse’s long-suspected companion star. Since then, researchers…

NASA Hubble Helps Detect ‘Wake’ of Betelgeuse’s Elusive Companion Star

Astronomers spot closest giant planet orbiting binary stars ever observed

This Star Is Being Eaten Alive—and Its Explosive Death Will Be Visible in Broad Daylight

TESS finds three Earth-sized exoplanets orbiting binary stars

Betelgeuse’s Newfound Companion Star Keeps Breaking Astronomy Rules