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Scientists find 'planet-killer' asteroids lurking in an elusive place
"We haven't found them all."
By Mark Kaufman
![an asteroid in a glare from the sun](https://cdn.statically.io/img/helios-i.mashable.com/imagery/articles/007IKYnNwB8XQutpSqgTWcg/hero-image.fill.size_220x133.v1667326347.jpg)
![an asteroid in a glare from the sun](https://cdn.statically.io/img/helios-i.mashable.com/imagery/articles/007IKYnNwB8XQutpSqgTWcg/hero-image.fill.size_220x220.v1667326347.jpg)
A meteorite punched a hole in a dog house. Now it's a collector's item.
At Christie's, one of the most popular items in its meteorite auction wasn't even a space rock.
![Meteorite-struck dog house selling at auction](https://cdn.statically.io/img/helios-i.mashable.com/imagery/articles/020Mob46Towo42bBT2YKCfi/hero-image.fill.size_220x133.v1645822539.jpg)
![Meteorite-struck dog house selling at auction](https://cdn.statically.io/img/helios-i.mashable.com/imagery/articles/020Mob46Towo42bBT2YKCfi/hero-image.fill.size_220x220.v1645822539.jpg)
Vigilant amateur asteroid hunters keep watch for menacing space rocks
Crowd-sourcing planetary defense.
![an amateur astronomer looking for an asteroid](https://cdn.statically.io/img/helios-i.mashable.com/imagery/articles/07jt0cTkJZOryw4jrSjQ88D/hero-image.fill.size_220x133.v1653521941.jpg)
![an amateur astronomer looking for an asteroid](https://cdn.statically.io/img/helios-i.mashable.com/imagery/articles/07jt0cTkJZOryw4jrSjQ88D/hero-image.fill.size_220x220.v1653521941.jpg)
The most mysterious asteroids in the solar system
A spacecraft is en route for the first-ever reconnaissance of these ancient objects.
By Mark Kaufman
![a spacecraft passing a Trojan asteroid](https://cdn.statically.io/img/helios-i.mashable.com/imagery/articles/04F9FMjOpz7792hPTXoDqnh/hero-image.fill.size_220x133.v1653424379.jpg)
![a spacecraft passing a Trojan asteroid](https://cdn.statically.io/img/helios-i.mashable.com/imagery/articles/04F9FMjOpz7792hPTXoDqnh/hero-image.fill.size_220x220.v1653424379.jpg)