What’s the difference between a leopard and a jaguar?
Look closely at the spots to tell leopards from jaguars: there’s a subtle clue.
Category: Science
Scrub Jay at the Vehicle Assembly Building
A scrub jay perches on a branch near the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida on June 22, 2020.
‘No radio astronomy from the ground would be possible anymore’: Satellite mega-swarms are blinding us to the cosmos — and a critical ‘inflection point’ is approaching
Invisible radiation leaking out of private satellites, like SpaceX’s Starlink spacecraft, is disrupting radio astronomers’ ability to detect important signals from across the universe. If
Physicists capture ‘second sound’ for the first time — after nearly 100 years of searching
First theorized in 1938, heat’s wave-like flow through superfluids, known as “second sound”, has proven difficult to directly observe. Now, a new technique has finally
NASA plans to build a giant radio telescope on the ‘dark side’ of the moon. Here’s why.
A NASA-funded plan to build a large radio telescope on the moon’s far side is nearing final approval and could become a reality by the
Great eared nightjar: The ‘baby dragon’ bird that lays its eggs on the floor
Great eared nightjars live on the forest floor, remaining motionless throughout the day, camouflaged among leaf litter and tree stumps.
Infamous ‘neutron lifetime puzzle’ may finally have a solution — but it involves invisible atoms
A type of hydrogen that doesn’t interact with light could explain how long neutrons live and reveal the identity of the universe’s dark matter, according
Why isn’t an atom’s nucleus round?
The nuclei of atoms are often portrayed as round in textbooks, but it turns out they’re rarely spherical.
The CDC changed its COVID vaccine guidance. What does that mean for you?
When Health and Human Services Secretary Robert F. Kennedy Jr. announced new COVID recommendations this week, it raised questions among clinicians and patients: Will those
This week in science: hawks hunting, infrared contacts and immunity through the day
Berly McCoy and Regina Barber of Short Wave talk about a hawk’s clever hunting strategy, contacts that allow wearers to see infrared light, and how
How the brain turns an experience into an emotion
A study offers a glimpse of how the brain turns experience into emotion. In mice and humans, puffs of air to the eye caused persistent
Photographer captures ghostly ripples over Colorado night sky. ‘It is rare to see it directly overhead and moving like that’
See the stunning timelapse captured by photographer Aaron Watson showing ghostly airglow ripples pass through the Colorado sky.
Best wildlife observation equipment 2025: Birds, bats, bees and everything inbetween
This is the best wildlife observation equipment you can buy in every category, from binoculars and cameras to GPS and compasses.
Noctilucent cloud season 2025 is upon us! Here’s how to spot elusive ‘night-shining’ clouds
Here’s when and where to look for the best chance of seeing Noctilucent, ‘night shining’ clouds in summer 2025.