Every galaxy contains a supermassive black hole at its center, which can be billions of times the Sun's mass, influencing galaxy formation.
Approximately 95% of the Universe is invisible, comprising dark matter and dark energy, which influence visible matter through gravitational effects.
The Universe was born 13.82 billion years ago from the Big Bang, marking the beginning of all matter, energy, and time.
Dark energy, accounting for two-thirds of the Universe's mass-energy, has repulsive gravity, causing the acceleration of cosmic expansion.
Most discovered planetary systems differ significantly from ours, featuring compact arrangements and unusual orbits that challenge existing formation theories.
Gravitational waves were first detected in 2015 from merging black holes, revealing insights into massive stars and early cosmic events.
Despite countless stars and planets, Earth remains the only known location for life, raising questions about extraterrestrial existence and the Fermi Paradox.