A mysterious comet is shooting through our solar system. Why are scientists so excited about 3I/Atlas?

Wed, 20 Aug 2025 03:50:00 +1000

Andrew Pam <xanni [at] glasswings.com.au>

Andrew Pam
<https://www.theguardian.com/environment/2025/aug/19/3i-atlas-comet-interstellar-alien-object-where-size-speed>

"An object that came from outside our solar system is hurtling towards the sun
at roughly 61km (38 miles) a second.

First detected in July, this visitor from outer space – known as 3I/Atlas – is
only the third known interstellar object to have been observed, after ‘Oumuamua
in 2017 and 2I/Borisov in 2019.

Excitement has been growing since the Hubble space telescope captured an image
of the interstellar interloper, offering scientists a rare opportunity to
analyse its size and chemical makeup.

“We’ve never had an object like this to study before,” says Dr Rebecca Allen,
co-director of Swinburne’s Space Technology and Industry Institute."

Cheers,
       *** Xanni ***
--
mailto:xanni@xanadu.net               Andrew Pam
http://xanadu.com.au/                 Chief Scientist, Xanadu
https://glasswings.com.au/            Partner, Glass Wings
https://sericyb.com.au/               Manager, Serious Cybernetics

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