Einstein and Newton have no comment.

They say that rules and laws are created for one reason: to be broken.

Apparently, gravity is not immune to this mantra.

MSN reports that:

Newton described the force as depending on an object’s mass. Though it extends infinitely, gravity weakens with distance (specifically, by the inverse square of the distance). Einstein built on these givens in developing his theory of relativity.

Then more than a decade ago a researcher noticed something funny about two Pioneer spacecraft that were streaming toward the edge of the solar system. They weren’t where they should have been.

Something was holding the probes back, according to calculations of their paths, speed and how the gravity of all the objects in the solar system ? and even a tiny push provided by sunlight ? ought to act on them.

Now scientists have proposed a new mission to figure out what’s up with gravity.

Click here to read about how Pioneer 10 and 11 are now on the lamb from the Physics Fuzz, sticking it to “the brain” by completely changing how we’re looking at gravity.