Avi Loeb
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Cosmic Slingshots to the Speed of Light
Expected number of semi-relativistic hypervelocity stars (SHS) as a function of survey depth.
Will NASA’s Roman Space Telescope Discover Interstellar Artifacts?
The Nancy Grace Roman Space Telescope, named after NASA’s first chief astronomer, is planned for launch today, August 30, 2026.
A Self-Sustained Black Hole Engine, Powered by Tidal Disruption of Stars
A model for a self-sustained black hole engine at the center of a galaxy.
Skeptics Are Capable of Promoting Conspiracy Theories
(Image credit: PURSUE/DoW ) Three months ago, I was contacted by representatives from the Office of the Director of National Intelligence ( ODNI ) and the All-Domain Anomaly Resolution Office ( AARO )…
The Limits of Our Cosmic Horizon
(Image credit: Greg Wyatt) Naively, one would expect that as the Universe ages we would be able to observe more galaxies because light emitted by them is able to traverse larger distances over time…
Scientists Deserve First-Hand Evidence on UAP Materials
An artist’s illustration of a UAP incident. (Image credit: PURSUE/DoW ) We live in exciting times. Former U. S. military intelligence official David Grusch claims that the U. S.
Nuclear Spacecraft
An illustration of NASA’s SR-1 Freedom nuclear spaceship in front of Mars.
How to Build a Black Hole in Your Backyard
A “black-hole star” formed as a result of the tidal disruption of a Sun-like star by a supermassive black hole of less than 100 million times the mass of the Sun, as illustrated in a 1997 paper here .
Are We at the Top of the Cosmic Food Chain?
A puma named Gaia in the Las Pumas rescue center in Costa Rica.
How to Rule Butterflies
(Image credit: Greg Wyatt) The astronomer Maria Mitchell said : “The greatest benefit derived from the study of science is that it lifts you out of and above the littleness of daily trials.” (Image…