Stars | Astronomy.com

Today in the History of Astronomy

May 27, 1933: Arcturus lights up the World’s Fair

An artist's illustration of two stars against a dense, starry background with red and blue nebula clouds. A large, intensely bright white star dominates the left side of the image, while a smaller, vivid blue star glows to its right, suggesting a binary star system.

How can a young blue giant have a white dwarf companion star that’s billions of years older?

A richly detailed telescope image of a star-forming nebula, filled with swirling clouds of blue, orange, and pink gas and dust. Dark pillars of dense dust cut through the center of the image, surrounded by glowing nebular material and hundreds of orange and yellow stars scattered throughout. A bright cluster of young stars illuminates the lower right portion of the image, casting a warm glow against the surrounding gas clouds.

RCW 36: A bird of prey sails away

Why do some stars appear to twinkle while others don’t?

Exoplanets, Stars

JWST uncovers the Lobster Nebula’s firestorm of starbirth

R Aquarii’s strange, twisted relationship

Today in the History of Astronomy

April 13, 1941: The death of Annie Jump Cannon

How long do planetary nebulae last?

Exoplanets, Stars

JWST reveals how dust becomes planets

Milky Way, Solar System, Stars

The Sun’s galactic migration may have made life on Earth possible

Exotic Objects, Science

The star that vanished without a bang

Deep-Sky Objects

Magnificent NGC clusters in the winter sky