Gravitational waves eject black hole from galaxy.
The following images and text illustrate how two supermassive black holes merged to form a single black hole which was then ejected from its parent galaxy…
Astronomía — Exploración espacial.
Tema 3. 3. – Relatividad general de Einstein, agujeros negros y universos abiertos y cerrados.
Seven Worlds for TRAPPIST-1
“Seven worlds orbit the ultracool dwarf star TRAPPIST-1, a mere 40 light-years away…”
Wolf-Rayet Star 124: Picture of the Day.
“Some stars explode in slow motion. Rare, massive Wolf-Rayet stars are so tumultuous and hot that they are slowly disintegrating right before our telescopes…”
Adult | Education | Humanities
Remarks on an autonomous model for public libraries, part 2.
These remarks further explore ideas noted in “A sketch for a public library model, part 1”.
Adult | Books | Uncategorized
Bossypants Book Club (October 2018 Selection): The Hate U Give by Angie Thomas
Book Overview Sixteen-year-old Starr Carter moves between two worlds: the poor neighborhood where she lives and the fancy suburban prep school she attends. The uneasy balance between these worlds is shattered when Starr witnesses the fatal shooting of her childhood best friend Khalil at the hands of a police officer. Khalil was unarmed. Soon afterward,…