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Particle Physics

Physicists have narrowed the mass range for hypothetical dark matter axions

In two new studies, scientists search for axions within new mass ranges but the particles remain elusive.

Planetary Science

Some ‘superpuff’ exoplanets may actually be ringed worlds like Saturn

“Superpuff” planets look fluffy and light. But for some of the worlds, the effect could instead be explained by large, rocky rings, a study suggests.

Health & Medicine

A dog in Hong Kong has a low-level infection of the new coronavirus

There’s currently no evidence that pets can actually get sick from the virus or pass it to people or other animals.