News from the Cosmos [aususuk 706.88]

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Newly discovered comet is confirmed as an interstellar visitor - with a surprisingly familiar look

The comet is only the second interstellar comet ever detected in our solar system and the first that looks like a traditional comet.

10 years ago, Australia sent a message into space. It's now halfway to its destination

In 2009, a powerful beacon was broadcast to a distant planet and, this week, it reached the halfway mark. It was Australia's first attempt to contact an extraterrestrial civilisation.

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It's a garden-variety comet, so why's everyone getting so excited about 21/Borisov?

The comet 2I/Borisov is the second interstellar object we've picked up entering the solar system from deep space.

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Indigenous Australians would have seen this star explode 9,000 years ago

Scientists have used a powerful radio telescope to detect the remnants of a supernova explosion that took place 9,000 years ago.

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How an Icy Moon of Saturn Got Its Stripes

Of the strange and unexplained terrains in our solar system, the south pole of Saturn's moon Enceladus is among the most perplexing. Enceladus is an ocean world, with a vast and briny sea tucked beneath its icy crust; this makes it one of the most tantalizing places in the solar system to look for life beyond Earth. But unlike other frozen moons, Enceladus constantly erupts. The tiny world blasts...