It was the closest comet near-miss known to astronomers, but everything is alright.

Comet Siding Spring shaved past a planets surface at one third the distance of the Earth to the moon. But it wasnt Earth in the cross hairs it was our neighbor Mars.

Earth got lucky in more than one way. With a gang of NASA orbiters and rovers on and around Mars, their cameras and instruments got a historic front row seat on the comet that NASA said made the closest recorded pass ever by any planet.

The three orbiters are just coming out of hiding.

The comet came so close that Mars Odyssey, Mars Reconnaissance Orbiter and the Mars Atmosphere and Volatile Evolution (MAVEN) had to duck and cover on the other side of the planet.

Otherwise, Siding Springs debris of dust and gas flying at 126,000 miles per hour just 87,000 miles above Mars surface could have blasted them like a shotgun.

Theyre all OK, NASA said in a statement. It will take a few days for them to transfer pictures and data to Earth.

Siding Spring has moved on. The comet does not pose a threat to Earth and was headed back out to the outer reaches of the solar system, NASA said.

Comet spectators

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NASA orbiters are OK after comet close call on Mars