Abstract: We present a comprehensive tutorial on the finite-difference time-domain (FDTD) modeling of space, time, and space-time-varying media, building upon our previous review by offering a ...

Explosions of all varieties are booming throughout the universe. When a massive star dies, for instance, it bursts in a bright supernova, sometimes leaving behind a dead core called a neutron star.

For the better part of two months last year, most of us had no idea how serious the problems were with Boeing’s Starliner spacecraft docked at the International Space Station. A safety advisory panel ...

Blue Origin will make history when it sends the first person who uses a wheelchair past the Kármán line, an internationally recognized boundary of space that's 62 miles above Earth. On its next ...

Astronomers have detected spacetime itself being dragged and twisted by a spinning black hole for the first time. The discovery, seen during a star’s violent destruction, confirms a prediction made ...

Space.com reported that Blue Origin completed a suborbital human spaceflight on Saturday, Dec. 20, 2025, which marked a first in commercial spaceflight. The mission launched at 9:15 a.m. EST from the ...

Jeff Bezos’ Blue Origin space venture added a page to the space history books today by sending the first wheelchair user into space. “It was the coolest experience,” said Michaela “Michi” Benthaus, a ...

First direct evidence of black hole frame-dragging observed Spinning black hole seen twisting spacetime during stellar destruction Discovery confirms a 100-year-old prediction of general relativity ...

Michaela "Michi" Benthaus and teammates spent several minutes in microgravity. Blue Origin made history Saturday, sending for the first time a person who uses a wheelchair past the Kármán line, an ...

NASA JPL pinpoints the moment the interstellar visitor passes closest to our planet. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Interstellar ...