It was the brightest supernova in nearly 400 years when it lit the skies of the southern hemisphere in February 1987. Supernova 1987A – the explosion...
That's the best case. You can't get a lower impact velocity than you get by starting out at a relative halt, and anything falling in from solar orbit...
Yesterday, I got the news that my favourite aunt--honestly, my favourite relative outside Graham and the kids--got her first shot. I should find out...
Apparently he was hoping that the clearance was a lie, I guess, and that while a vehicle as tall as his might get stuck, going fast enough would keep...
Yes, relativistic length contraction doesn't work at right angles to the velocity vector.
(I don't know what "slipstream" means in this context, but...
