Dark energy, the mysterious force that's driving the accelerating expansion of the universe, may not actually exist, ...

The discovery of the first interstellar visitor, a space rock called ‘Oumuamua, sent waves of excitement across the scientific community. It also started a mystery. The object had all the ...

‘Oumuamua (1I/2017 U1) is the first object of interstellar origin observed in the Solar system. Recently, Micheli et al. (2018) reported that ‘Oumuamua showed deviations from a Keplerian orbit at a ...

Scientists have come a step closer to understanding how collisionless shock waves—found throughout the universe—are able to ...

Composite image of the Tycho Supernova remnant. Shock waves from such explosive events are believed to be the main drivers behind cosmic rays. Scientists have come a step closer to understanding how ...

Scientists have come a step closer to understanding how collisionless shock waves -- found throughout the universe -- are able to accelerate particles to extreme speeds. Scientists have come a step ...