Simon O'Toole

(he/him)
Get your telescopes ready for a rare close encounter with an asteroid this Australia Day. Flickr/Ryan Wick

Giant asteroid makes its closest pass of Earth on Australia Day

Clear skies this Australia Day could give observers a rare look at a giant asteroid flying past Earth at 56,000kmh. The asteroid, known as 2004 BL86, will not return to Earth for around another 200 years…
The main mass of the Chelyabinsk meteorite is kept at the Chelyabinsk State Museum of Local History. The asteroid caused the largest airburst on the planet since the famed 1908 Tunguska event, which also occurred in Russia. Andrey Yarantsev

Chelyabinsk meteor explosion a ‘wake‑up call’, scientists warn

Three studies have revealed details of the meteor that exploded above Russian city, Chelyabinsk, in February this year. Their findings, published today in a pair of papers in Nature and one in Science…
The chances of the weekends two asteroid events being related are next to zero. NASA/JPL-Caltech

Forensic astronomy: the Russian meteor and 2012 DA14

One of the most exciting things about science is the detective work, and never was this more the case than Friday. Within an hour or so of the event, almost everyone had seen the dramatic footage of the…
A bright flash over Russia’s Chelyabinsk region may have been a meteor. YouTube screenshot

Meteorite soars over Russia

A fireball has flown over Russia, delivering a sonic boom with enough force to shatter windows, amateur footage shows. The astronomical event comes just one day before a large asteroid is expected to pass…
When it comes to asteroids, alert but not alarmed may be the best approach. NASA

Look out: close encounters of the asteroidal kind

An asteroid named 2012 DA14 will come within 27,700 kilometres of Earth early on Saturday morning Australian time (around 6:30am AEDT). At this distance the asteroid will pass within the orbits of several…
Asteroid impacts make for impressive images and movies, but how realistic is the threat? NASA

How to avoid an asteroid impact (without calling in Bruce Willis)

How many times have you read a headline about our impending doom due to a “Deep Impact”-style annihilation? In a way it’s not surprising – we have an insatiable appetite for disaster stories, a hunger…

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