298K views · Sep 24, 2015 · 5:11 · 0 HN recommenders · 4 mentions · discussed 2019–2024
Scott Manley's short animation shows every asteroid discovery from 1970 to 2015 plotted over time in 8K. It makes visible how survey technology made discoveries accelerate and where telescopes looked.
Why Hacker News points people here: HN uses it as a quick visual reference for how asteroid detection capability grew and how discovery patterns are biased by survey geometry.
“this video by Scott Manley helps to get a sense of how our ability to detect asteroids has grown over time”HN comment, 2021
“this animation of asteroid discoveries”
Animation showing asteroid discoveries accelerating over decades
No need to invoke aliens. We're seeing these now because our ability to find smaller objects in the solar system has improved rapidly over the last few decades, as is evident from this animation of asteroid discoveries: this video
“this video by Scott Manley helps to get a sense of how our ability to detect asteroids has grown over time”
Animation showing how asteroid detection grew over time.
> What happens next is entirely out of human hands, unless we can realize that event. We would not have been able to detect this object two decades ago. So the "event" is that our observation capabilities have grown past some threshold, not that anything has changed in our solar system. Whether rocks or alien probes, these types of objects must always have been passing through our solar system with some regularity. We'll get a a chance to study others soon enough. Edit: this video by Scott Manley helps to get a sense of how our ability to detect asteroids has grown over time: this video
Visualization of asteroid discoveries as a pool of possible targets.
Well, look at it this way: this video [Asteroid Discovery - 1970-2015 - 8K resolution] Take your pick! And remember one doesn't need a tidy Hohman transfer. Rather the opposite in fact. The nastier the intersect angle the better. (Hopefully we don't end up on some watchlist :-P )
“You can see the effect in this animation of asteroid discoveries over time”
Animation showing discovery bursts aligned away from Earth and along its orbit.
Not entirely, but in part! You can see the effect in this animation of asteroid discoveries over time, where the discoveries are concentrated in bursts facing directly away from Earth, or directly parallel to its orbit. this video
