Laniakea is an enormous cosmic structure made up of galaxies, galaxy groups, and clusters. It is not a single object, but a region defined by the way galaxies move through space under the influence of gravity.
π A multiverse is a hypothetical idea that our universe may be only one of many universes, each potentially having different conditions or histories.
π΄ Mars β The Red Planet
Mars is a rocky world with a thin COβ atmosphere. Its surface shows ancient volcanoes, impact craters, valleys, and wind-shaped terrain.
Caught the Moon tonight, August 19, hanging low in Libra β 48% lit and only hours away from first quarter.
π Itβs riding the far end of its orbit right now, roughly 400800 km out, which makes tonightβs half moon look a touch smaller than usual. Along the terminator, the crater trio Theophilus, Cyrillus and Catharina throws long shadows, with rugged Maurolycus further south and Posidonius up north.
π Handheld with the Sony A7RV, 70β200mm f/4 + 2x teleconverter at 400mm β no tripod, just steady breathing, actually bad seeing. #Moonphase
This stunning image captures a rocket launch at night. The bright trail forms a graceful arc across the sky, while its light reflects on the calm water below. πβ¨
π SH2-308 βDolphin Head Nebula:
A vast bubble of glowing ionized gas about 5,000 light-years away, formed by powerful stellar winds from a massive Wolf Rayet star. Its blue glow and dolphin like shape make it a striking cosmic structure. π¬β¨
π A Starβs Explosive Death
Astronomers observed it just 26 hours after the explosion, revealing an unusually elongated shape and providing rare clues about how massive stars die.
πͺ Daphnis β Saturnβs Tiny Wave-Maker
Daphnis is a tiny moon, about 8 km wide, orbiting inside Saturnβs Keeler Gap. Its gravity pulls on the ring particles, creating waves and ripples in Saturnβs icy rings. The phenomenon was captured by NASAβs Cassini spacecraft.