Some habitable worlds orbiting dead stars could be kept alive for aeons thanks to a quirk of Einstein’s theory of gravity ...
In the hunt for extraterrestrial life, we usually look for planets orbiting sun-like stars and icy moons. But there is ...
Global Positioning System (GPS) satellites continuously beam down ultra-precise timestamps, each message essentially saying, “It was 12:00:00.000001 when I sent this.” ...
Planets that orbit white dwarf stars should be too hot to host alien life, theories suggest. But a new study accounting for ...
Gravitational waves are energy-carrying waves produced by the acceleration or disturbance of massive objects. These waves, ...
The story begins with the black hole information paradox. According to relativity, anything that falls into a black hole is ...
A new collage from the James Webb Space Telescope reveals eight dazzling examples of gravitational lensing.
Astronomers had long suspected that certain quasars—those brilliant, otherworldly light sources fueled by supermassive black ...
Black holes are so strange that physicists have long wondered if they are quite what they seem. Now we are set to find out if ...
What if the universe remembers? A bold new framework proposes that spacetime acts as a quantum memory. For over a hundred ...
This Star Trek concept ignited a dream that humans could one day travel faster than the speed of light. Now physicists are ...