Did You Know?
The largest known black hole could fit 66 billion Suns inside it.
TON 618, a supermassive black hole at the center of a very distant quasar, has a mass of 66 billion times that of our Sun. Its event horizon, the point of no return for light, is about 198 billion kilometers across, larger than our entire solar system.
Did You Know?
The most reflective planet in the solar system is Venus.
Venus reflects about 70% of the sunlight that reaches it, thanks to its thick cloud cover of sulfuric...
Did You Know?
Some exoplanets orbit around dead stars.
Several planets have been discovered orbiting pulsars, the incredibly dense remnants of exploded stars. The first confirmed exoplanets...
Did You Know?
There’s a Saturn-like planet that floats freely through space without a star.
PSO J318.5-22 is a gas giant planet that doesn't orbit any star. It floats freely through space, likely...