Are dogs a good judge of character? New study says maybe not

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Are dogs a good judge of character? New study says maybe not

Many people think their dogs are good judges of a person’s character, but new research indicates there is no evidence that dogs form opinions of people.

Shireen Gonzaga

July 25, 2025

Young, massive exoplanet is in an unusual double star system

HD 135344 Ab is a young massive exoplanet orbiting a star in a binary star system 440 light-years away. The other star still has its planet-forming disk.

Paul Scott Anderson

July 25, 2025

Millions under extreme heat threat across the U.S.

Millions of people in the United States are at risk for dangerous or extreme heat on Friday, July 25, 2025, and through the weekend.

Rachel Duensing

July 24, 2025

New Chandra images reveal glorious galaxies and more

New Chandra images highlight glittering spectacles of the cosmos, from star factories to black-hole-powered galaxies. See more about them here!

Kelly Kizer Whitt

July 24, 2025

‘Unicorn’ long-period radio transient baffles scientists

Astronomers have discovered a long-period radio transient with theory-defying properties. It's incredibly polarized, and its spin appears to be speeding up.

EarthSky Voices

July 24, 2025

A mysterious fossil and the evolution of skin and feathers

A fossil of an ancient reptile shows a distinct crest that is made neither of feathers, scales or hair. It's forcing scientists to rethink reptilian evolution.

EarthSky Voices

July 24, 2025

Newborn planet spotted sculpting a spiral around its star

Astronomers have found evidence for a newborn planet 440 light-years away, sculpting spiral arms in the disk of gas and dust around its young parent star.

EarthSky Voices

July 23, 2025

Companion for Betelgeuse confirmed! Beloved red star has a blue-white buddy

Astronomers using the Gemini North telescope have confirmed a companion for Betelgeuse! It's a blue-white star and orbits within Betelgeuse's outer atmosphere.

Paul Scott Anderson

July 22, 2025