If you blinked, you may have missed it - but stargazers caught a glimpse of a bus-sized asteroid zooming past the Earth this morning.
The asteroid, which passed within 12,000km of Earth, is a timely reminder there is more to our environment than meets the eye, astronomers say.
The 2011 MD asteroid, which is about the size of two buses, passed over Australia about 4am (AEST).
Experts said last week there was no chance of impact and Fred Watson from the Australian Astronomical Observatory said there wouldn't be much of a spectacle.
However, stargazers are expected to get another chance to spot the asteroid as it makes a second appearance on Wednesday. It still has no chance of striking the Earth, though, NBC LA reported