/sci/ - Science & Math

>>15789854
>It's not real
Then where is this coming from?
https://en.wikipedia.org/wiki/C/2014_UN271_(Bernardinelli%E2%80%93Bernstein)

>>15737261
Because it bothers you I'm going to spell out what doubling the mass of Mars's atmosphere with Venus's CO2 would take -
250 million 100 thousand ton artificial comets and if we want to do it, in say, a century we have to fling 2.27 million of them every Venus-Mars synodic window which occur 332.3 days apart

>>15367831
Kino and spooky pic

>Dark Comets? Unexpectedly Large Nongravitational Accelerations on a Sample of Small Asteroids
>We report statistically significant detections of non-radial nongravitational accelerations based on astrometric data in the photometrically inactive objects 1998 KY26, 2005 VL1, 2016 NJ33, 2010 VL65, 2016 RH120, and 2010 RF12. The magnitudes of the nongravitational accelerations are greater than those typically induced by the Yarkovsky effect and there is no radiation-based, non-radial effect that can be so large. Therefore, we hypothesize that the accelerations are driven by outgassing, and calculate implied H2O production rates for each object. We attempt to reconcile outgassing induced acceleration with the lack of visible comae or photometric activity via the absence of surface dust and low levels of gas production. Although these objects are small and some are rapidly rotating, surface cohesive forces are stronger than the rotational forces and rapid rotation alone cannot explain the lack of surface debris.
https://arxiv.org/abs/2212.08115

https://en.wikipedia.org/wiki/Great_Comet_of_1744
>Its apparent magnitude may have reached as high as -7
That's bright enough to cast a shadow

>>15104172
Its real and its spectacular