Technically deep space related, insofar as where the Big Badda Boom came from.
https://news.berkeley.edu/2019/03/29/66-million-year-old-deathbed-linked-to-dinosaur-killing-meteor/Specifically, they think they've found a particular graveyard that's right at the point of the K-T boundary. Evidence? Mixed up jammed together fossils of icthyoids, a Triceratops, and a few others all together with tektites buried in the mud...along with signs of a massive tsunami
and incinerated plant matter. A mix of fire, water, and enough thermal and physical shock to convert sand and rock into molten glass, then form it in freefall is how you get tektites, along with shocked quartz crystals and smears of iridium all at that layer.
They've all been found elsewhere at the same depths, but never all together, and never with actual fossils. That makes this, if it's not got any other good explanations, the literal graveyard of the very last dinosaurs in their very last day upon the earth, when for them the sun began to rise in the south. And then it kept on rising, growing brighter and brighter until a wave of destruction not seen since swept across the globe, taking millions of years to come back from.
Bowman, ND is three thousand kilometers away from the Chicxulub crater, yet it still clearly got hit with debris and energy. The forests burned, the seas rose, the skies fell, and the dinosaurs ended.