Our solar system appears to be breaking the cosmic speed limit, casting fresh doubt on the Standard Model of Cosmology.

How fast and in which direction is our solar system moving through the universe? This seemingly simple question is one of the ...

WASHINGTON -- Picture the sun as the size of a grapefruit. That would make tiny Pluto smaller than a poppy seed in the Smithsonian Institution's new scale model of the solar system. By the same scale, ...