News tagged with light

How to weigh stars with gravitational lensing

Astronomy & Astrophysics publishes the predictions of the passages of foreground stars in front of background stars. A team of astronomers, using ultra-precise measurements from the Gaia satellite, have accurately forecast ...

dateJul 20, 2018 in Astronomy
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A safe and effective way to whiten teeth

In the age of Instagram and Snapchat, everyone wants to have perfect pearly whites. To get a brighter smile, consumers can opt for over the counter teeth-whitening treatments or a trip to the dentist to have their teeth bleached ...

dateJul 18, 2018 in Bio & Medicine
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