Friday, September 20, 2019

Another interstellar visitor has arrived!

C/2019 Q4 (Borisov)
We could get an up-close look at our solar system's latest interstellar interloper a quarter century from now if we so desired, a new study suggests.

Late last month, Russian amateur astronomer Gennady Borisov spotted a comet that appears to be visiting from very far away. The odd trajectory and tremendous speed of the object, known as Comet C/2019 Q4 (Borisov), strongly suggest that it was born around another star rather than our own sun, scientists say.

This comet is the third potential interstellar visitor we know about — and all of them were spotted in just the past two years. Is this then a possible alien invasion force?

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