Astronomers were last night watching a small asteroid come closer to Earth than any other space rock yet recorded.
Called 2004 FH, it passed just 43,000km (26,500 miles) from our planet. That's so close that Earth's gravity bent the asteroid's path by about 15 degrees.
But don't worry - astronomers said there was absolutely no chance that the 25m wide rock would hit us.
One object about the size of this asteroid passes within a similar distance about every two years.
But this is the first time astronomers have recorded it.