An Interstellar Visitor: NASA Confirms New Comet Passing Through the Solar System

NASA has confirmed that a genuine interstellar object – meaning something that didn’t originate in our own solar system – is currently cruising through our celestial neighbourhood. The object, named 3I/ATLAS, may sound dramatic, but there’s no need to prepare for a real-life Armageddon.

Discovered in Chile – and Keeping a Safe Distance

The new visitor was spotted on 1 July by the ATLAS system (Asteroid Terrestrial-impact Last Alert System), which keeps watch for potentially hazardous space rocks. The discovery was made using a telescope in Río Hurtado, Chile – one of the few places on Earth where astronomers are literally scanning the edge of space.

Right now, the comet is about 420 million miles from Earth. Later this year it will make its “closest” approach, which, in astronomical terms, means around 150 million miles – comfortably between Earth’s and Mars’ orbits. So there’s no need to send Bruce Willis and Ben Affleck into space suits.

Interstellar Road Trips Are Rare

3I/ATLAS is only the third confirmed interstellar object ever observed in our solar system. The first two were ’Oumuamua in 2017 and 2I/Borisov in 2019. ’Oumuamua caused a stir with its cigar-like shape and wild speculation about whether it could be artificial (spoiler: probably not).

These rare travellers are like message bottles from distant star systems, carrying clues about environments beyond our galactic backyard – and perhaps even the building blocks of life.

NASA has traced 3I/ATLAS’s origins to the direction of the constellation Sagittarius, suggesting it has spent millions of years drifting between stars before wandering into our cosmic neighbourhood.

Can We See It?

Yes – if you have access to a powerful telescope. NASA predicts 3I/ATLAS will be visible from Earth until September, after which it will swing too close to the Sun to be spotted with amateur equipment. But come December, as it moves away again, astronomers worldwide will get another chance to catch a glimpse.

A Reminder of Past Scares

While 3I/ATLAS poses no threat, other celestial objects have raised more concern in recent years. Take asteroid 2024 YR4, which initially looked set for a dramatic Earth impact in 2032. It was even dubbed a “city killer” before further analysis revealed there’s no collision course after all. Stellar drama avoided.

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