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Long before space travel, we looked up and wondered. Telescopes became our first spacecraft — tools that let us explore the universe without leaving the ground. Today, observatories span the

A new discovery suggests gravitational fields can enable matter to become quantum entangled — and that’s even if the concept of quantum gravity does not exist. The idea comes from

Comets of this type aren’t everyday sightings. The opportunity to observe objects that might have orbital periods measured in thousands of years is fleeting. So when Comet Lemmon recently appeared

Check out the ripples from the coronal wave lifting off during the X5.1 solar flare. (Image credit: NOAA Space Weather Prediction Center) The sun erupted in spectacular fashion this morning