Add Yahoo as a preferred source to see more of our stories on Google. NASA probe confirms helicity barrier changes how solar wind heats up near Sun. (CREDIT: NASA) The mystery of why the Sun’s outer ...

Simulations reveal that Jupiter’s rapid growth disrupted the early solar system, creating rings where new planetesimals formed much later than expected. These late-forming bodies match the ages and ...

Far beyond Neptune, in the frozen depths of the Kuiper Belt, many ancient objects oddly resemble giant snowmen made of ice and rock. For years, scientists wondered how these delicate two-lobed shapes ...