Submissions by raattgift

Warp Drives and Closed Timelike Curves

Relativistic elastic membranes: rotating disks and Dyson spheres

There's Still a Lot We Have to Learn About the Proton

Paradoxes before the paradox: surface gravity and the information loss problem

NASA Telescopes Work Out Black Hole's Snack Schedule

Comment on "No Black Holes from Light" [ArXiv:2405.02389]

Visual Relativistic Mechanics

Milky Way may escape fated collision with Andromeda galaxy

Information preservation in Kerr-Newman spacetime using closed timelike curves

Positive Mass in General Relativity Without Energy Conditions

Astronomers scrambling to save the most powerful X-ray space telescope

Images to Celebrate NASA's Chandra 25th Anniversary

The Crab Nebula from Visible to X-Ray (Astronomy Picture of the Day)

Can light-rings self-gravitate?

Gaia: Milky Way's last major collision was surprisingly recent

Euclid Reference Publications: The Flagship Simulations