Elusive Planet Reshapes a ring around neighboring star
 

http://imgsrc.hubblesite.org/hu/db/2.../web_print.jpg


The top view, taken by NASA's Hubble Space Telescope is the most detailed visible-light image ever taken of a narrow, dusty ring around the nearby star Fomalhaut (HD 216956). The image offers the strongest evidence yet that an unruly and unseen planet may be gravitationally tugging on the ring. Part of the ring [at left] is outside the telescope's view. Hubble unequivocally shows that the center of the ring is a whopping 1.4 billion miles (15 astronomical units) away from the star. This is a distance equal to nearly halfway across our solar system. The geometrically striking ring, tilted obliquely toward Earth, would not have such a great offset if it were simply being influenced by Fomalhaut's gravity alone.

The view at bottom points out important features in the image, such as the ring's inner and outer edges. Astronomers used the Advanced Camera for Surveys' (ACS) coronagraph aboard Hubble to block out the light from the bright star so they could see the faint ring. The dot near the ring's center marks the star's location. Despite the coronagraph, some light from the star is still visible in this image, as can be seen in the wagon wheel-like spokes that form an inner ring around Fomalhaut [labeled "scattered light 'noise'"].

:boatswain

Very interesting axedbydax I wonder if there really is a planet we don't know about...

:)

thanks Funbrunette.Actually NASA has just discovered a 10th planet.

Astronomers in the United States have announced the discovery of the "10th planet" to orbit our Sun.
The largest object found in our Solar System since Neptune in 1846, it was first seen in 2003 - but important details have only now been confirmed.

Designated 2003 UB313, it is about 3,000km across - a world of rock and ice and somewhat larger than Pluto.

Scientists say it is three times as far away as Pluto, in an orbit at an angle to the orbits of the main planets.


Astronomers think that at some point in its history, Neptune probably flung the small world into its highly inclined 44-degree orbit.

more details here

yeah.. and i heard they called it planet xena (remember the warrior princess).. interesting new finds.