16/06/2021

Centuries-old shipwrecks found off Singapore

Two centuries-old shipwrecks packed with ceramics and other artifacts have been found off Singapore in a rare discovery that will shed light on the city-state's maritime heritage, archaeologists said Wednesday.

Mystery of Betelgeuse's dip in brightness solved

When Betelgeuse, a bright orange star in the constellation of Orion, became visibly darker in late 2019 and early 2020, the astronomy community was puzzled. A team of astronomers have now published new images of the star's ...

New material could remove respiratory droplets from air

Although plexiglass barriers are seemingly everywhere these days—between grocery store lanes, around restaurant tables and towering above office cubicles—they are an imperfect solution to blocking virus transmission.

Quantum-nonlocality at all speeds

The phenomenon of quantum nonlocality defies our everyday intuition. It shows the strong correlations between several quantum particles some of which change their state instantaneously when the others are measured, regardless ...

Finding the 'sweet spots' for managed aquifer recharge

Much of California's $50 billion agricultural industry depends on groundwater. We typically see only what this water makes possible above the soil: almond and pistachio groves, citrus orchards, rows of lettuce and grapevines ...

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