Our solar system vs TON 618, one of the largest black holes ever discovered:
TON 618 is a supermassive black hole estimated to be around 40 billion times the mass of our Sun. And it is *significantly* larger than our solar system.
Image: NASA
NGC 1999 is a peculiar nebula that looks like a cosmic keyhole in the vast expanse of space. This fascinating structure is a remnant of recent star formation, made up of debris left behind by the birth of a new star.
📸 ESA/Hubble & NASA, ESO, K. Noll
In his 1995 book The Demon-Haunted World, Carl Sagan shared a grim vision of America’s future. He foresaw a time when the U.S. would rely heavily on a service and information economy, with manufacturing outsourced to other countries.
6,000 years ago, the Sahara Desert was a thriving green oasis, thanks to the African Humid Period, which lasted from 11,000 to 5,000 years ago. Monsoonal rains, driven by shifts in Earth’s orbit, transformed the desert into a landscape of lush vegetation, lakes, and wildlife.
Scientists predict the universe will fade into darkness in about 100 trillion years. We’re currently in the Stelliferous Era, where stars light up the cosmos by fusing hydrogen.