A comet not seen in Earth's skies since the Stone Age will be passing by us again in a matter of weeks.
Today marked the beginning of the path of comet C/2022 E3 (ZTF) towards Earth, as it reached its perihelion (the point in its orbit where it is closest to the sun).
It will gradually grow brighter in the night sky until February 1, when it will be at the closest point to Earth.
Sky-watchers may not be able to catch a glimpse of the comet, dependent on their location or light and air pollution.
But anybody interested can watch a live stream from the Virtual Telescope Project online here.
According to Space.com, the last time this particular comet was visible from Earth, homo sapiens were still sharing the planet with Neanderthals.
This was 50,000 years ago, during the Palaeolithic era – the earliest part of the Stone Age.
The comet itself was just discovered in March last year as it came near to completing its lengthy orbit.
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