A completely dark, invisible object weighing 1 million times the mass of the Sun has been detected through its gravitational ...

The mysterious interstellar object hurtling through our solar system has just given scientists more evidence that it may be a craft from another part of the galaxy. According to Harvard astrophysicist ...

Hornof, D., Helm, V., de Dios Rodriguez, E. et al. A snapshot of relativistic motion: visualizing the Terrell-Penrose effect. Commun Phys 8, 161 (2025). https://doi ...

The vast majority of matter is dark – invisible until it is detected only through its gravitational effects. The newly discovered object could be a clump of dark matter, or it could also be a compact, ...