For the first time, scientists have the calculations and simulations to explain mysterious flashes from the galaxy OJ 287.
Galaxies are not islands in the cosmos. While globally the universe expands—driven by the mysterious "dark energy"—locally, galaxies cluster through gravitational interactions, forming the cosmic web ...
A gamma ray glow at our galaxy’s center has puzzled scientists for almost two decades. New computer simulations back the ...
Though NGC 7456 looks like a modest spiral galaxy, new Hubble and XMM-Newton observations reveal a bustling system with star-forming regions and an active core. The spiral galaxy NGC 7456 may appear ...