Diplomats try to lower expectations as Iran nuclear talks resume

November 20, 2013 04:11 PM

UPDATED November 25, 2013 04:45 AM

Comments

More Videos

  • This is what the interstellar visitor passing through our solar system looks like

    A newly discovered object from another star system passing through our galaxy is dazzling scientists. This week (November 2017), astromers have been observing this first-ever confirmed interstellar visitor. NASA has released a video showing an artist’s concept of the object.