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ahazred8ta 2 days ago [-]
The nearest approach is 0.988x Lunar Distance (379,868 km), 60 Earth radii out. The size is very roughly 6.7 meters, 22 feet. If it hit the atmosphere, the airburst would be about 5 kilotons. Airbursts like that happen every few years. https://en.wikipedia.org/wiki/Meteor_air_burst#After_1900
UniverseToday 1 days ago [-]
Also, Wikipedia isn't a credible source. It's not even a secondary source. Always refer to official data.
It seems like every few months we find out our orbit is far more crowded than we thought.
UniverseToday 1 days ago [-]
It changes multiple times each day.
wewewedxfgdf 2 days ago [-]
Is it possible that one day a dinosaur extinction size asteroid will be annouced on a collision course?
Is there some reason we would already know, or can these things just suddenly show up?
kadoban 17 hours ago [-]
> Is it possible that one day a dinosaur extinction size asteroid will be annouced on a collision course?
Yes, but it gets less likely as we keep searching more of the sky.
You can never _really_ say it's impossible, there can always be a cosmic bullseye heading our way from way off in interstellar space that we can't see until it gets closer.
But there is still room for quite a few rocks in the solar system to have our name on them too, last I checked.
Is there some reason we would already know, or can these things just suddenly show up?
Yes, but it gets less likely as we keep searching more of the sky.
You can never _really_ say it's impossible, there can always be a cosmic bullseye heading our way from way off in interstellar space that we can't see until it gets closer.
But there is still room for quite a few rocks in the solar system to have our name on them too, last I checked.