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Asteroid

Analysis and Comment (9)

Artist’s impression of the rings around Chariklo. Artist’s impression of the rings around Chariklo. ESO/L. Calçada/Nick Risinger

Double rings discovered around asteroid is an accidental find

In a surprise discovery two rings have been found around the remote asteroid Chariklo, which lies more than a billion kilometres from Earth. This is the first time rings have been discovered around an…
Comets no longer have clear cut definitions. Comets no longer have clear cut definitions. johntewell

Looks like a comet but feels like an asteroid? That’s wild!

Comet ISON’s fate has left many sad. For the public, the comet could have made for a spectacular view in December. For scientists, it would have been a chance to learn more about these mysterious bodies…
Rocky, water-rich asteroids and similar objects likely delivered the bulk of water on Earth. Now they’re being found well outside our Solar system. Rocky, water-rich asteroids and similar objects likely delivered the bulk of water on Earth. Now they’re being found well outside our Solar system. Mark A. Garlick, space-art.co.uk, University of Warwick and University of Cambridge

Watery asteroid gobbled up by a white dwarf: implications for life

How will future alien scientists know whether life existed in our solar system? One method may be to sift through the planetary debris left when our sun becomes a white dwarf. Astronomers are doing just…
The chances of the weekends two asteroid events being related are next to zero. 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…
When it comes to asteroids, alert but not alarmed may be the best approach. 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…
We could be engaged in off-Earth mining within a decade. We could be engaged in off-Earth mining within a decade. puuikibeach/Flickr

Want to colonise space? It’s time to start off-Earth mining

The prospect of people settling away from Earth has been a topic for dreamers and visionaries for some time. But if it’s ever to happen for real, there needs to be more than starry-eyed optimism. There…
Asteroid impacts make for impressive images and movies, but how realistic is the threat? 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…
When we start building structures outside Earth, the raw materials will likely come from asteroids. When we start building structures outside Earth, the raw materials will likely come from asteroids. Planetary Resources

Asteroid mining will happen … but Australia will miss the boom

There will be a future mining boom, as heralded in recent media stories. But this mining will take place in a location even more hostile than the Australian Outback – space. More specifically, the ore…

Research and News (7)

Research Briefs (6)

Vesta asteroid shown in new light

Images from NASA’s Dawn spacecraft have revealed unusual geological features on the surface of the asteroid Vesta, one of…