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EarthSky Voices

Earth

Why the Pacific tsunami was smaller than expected

Find out how earthquakes cause tsunamis, and why the July 2025 Kamchatka earthquake didn't cause tsunami waves as devastating as expected.

Light pollution is impacting astronomy around the globe

Light pollution is affecting astronomical observatories around the world. Increasing light pollution and urban sprawl are impacting even remote sites.

Dark energy surprise suggested by super set of supernovae

A new analysis of supernovae observations hints that dark energy may change strength over time. It could mean we need to recalculate the universe's fate.

Meet Apep, a pair of dying stars in a swirling nebula

Webb has captured an image of Apep, which includes the swirling nebula around 2 dying stars. A scientist explains what we know about it now.

Is the 3rd interstellar visitor – 3I/ATLAS – an alien probe?

It's highly unlikely the interstellar comet 3I/ATLAS is an alien spacecraft. However, here are things scientists would look for to detect an alien probe.

‘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.

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.
Space

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.

Grand Canyon landslide due to Meteor Crater impact?

Two world-famous Arizona attractions – the Grand Canyon and Meteor Crater Natural Landmark – might share a hidden connection.

Biggest black hole merger ever breaks the universe’s rules

Cutting-edge gravitational wave detectors have found most massive black hole merger yet. Discoverers say it defies our understanding of how black holes form.