Hypervelocity stars are fascinating stellar sprinters that travel so fast that they can reach escape velocity–and in this way break free from the powerful gravitational grip of our Milky Way Galaxy.
Sagittarius – A-Star’s Last Banquet By Judith E Braffman-Miller Secretive, sinister, and gluttonous, supermassive black holes hide in the hearts of perhaps every large galaxy in the Universe–including our own barred-spiral Milky Way. Such supermassive hearts-of-darkness feed on ill-fated wandering stars, as well as on doomed clouds of floating gas, that have traveled too close to their inescapable gravitational embrace–never…Read More
Galactic Archaeologists Build A Stellar Family Tree By Judith E Braffman-Miller Traditional archaeologists uncover the many mysteries of our ancient human ancestors by digging for the lingering remains of long-lost civilizations that can be excavated and observed today. Astronomers are now borrowing the same principles applied in archaeology and biology in order to piece together the mysterious family tree of…Read More
The Strange Case Of The Pushy Void By Judith E Braffman-Miller Billions upon billions of galaxies, blazing with the furious, brilliant fires of a host of dazzling stars, trace out the heavy and gigantic filaments of the Great Cosmic Web–a structure that would otherwise be invisible to our eyes, were it not for these sparkling and revealing flecks of starlight….Read More
Our Galaxy’s Stolen Stars By Judith E Braffman-Miller Our star-blazing, spiral Milky Way Galaxy spins majestically like a giant pin-wheel swirling in space. A very ancient structure, our Galaxy is thought to have started out as either one or several small over-dense regions in the mass distribution of the baby Universe, soon after its inflationary Big Bang birth almost 14…Read More