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Posts by
EarthSky Voices
Spaceflight
Europa Clipper successfully tests radar during Mars flyby
Europa Clipper tested its radar during a Mars flyby in March 2025. The newly announced results show the instrument is working as hoped.
August 4, 2025
World megaflash lightning record set in U.S.
On July 31, 2025, the World Meteorological Organization certified a new lightning record for the longest lightning bolt, 515 miles (829 km) in extent.
August 3, 2025
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.
August 1, 2025
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.
August 1, 2025
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.
July 30, 2025
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.
July 30, 2025
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.
July 27, 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.
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.
July 24, 2025
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.
July 23, 2025
