New research suggests that dark energy isn't needed to explain the acceleration in the expansion of the universe — instead suggesting giant voids in space are creating an illusion. When you ...

Our home planet is bombarded with particles from outer space all the time. And while we are mostly familiar with the rocky ...

Researchers found for the first time evidence that even microquasars containing a low-mass star are efficient particle ...

scientists have been trying to answer a crucial question in space physics: What processes allow electrons to be accelerated to relativistic speeds? The main mechanism to explain acceleration of ...

Most people hear “spacecraft” and envision rockets blasting into space, but they’re often not aware of the meticulous ...

Instead, they strongly suggest that there is local acceleration near 5.5 Re, and that radial diffusion actually transports electrons away from the Earth, beyond the radiation belts. In contrast to ...