Black Hole
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As some of you correctly pointed out, the claim that TON 618 is the largest object in the Universe is now outdated. Recent discoveries have identified Phoenix A, a supermassive black hole with an estimated mass of around 100 billion suns—or possibly even more, as its exact mass has not yet been measured using orbital methods. Phoenix A resides at the center of the Phoenix Cluster of galaxies and boasts some truly mind-boggling features: - Mass: 24,100 times greater than Sagittarius A*, the black hole at the center of the Milky Way. - Scale: Twice the mass of the entire Triangulum Galaxy, including its dark matter halo. - Event Horizon: A Schwarzschild diameter of 590.5 billion kilometers (3,900 AU), roughly 100 times the distance from the Sun to Pluto. - Circumference: Traveling around its event horizon at the speed of light would take 71 days and 14 hours. - Growth: Gains about 60 times the mass of the Sun every year. Given its immense size, Phoenix A might belong to a proposed class of stupendously large black holes —primordial black holes with masses potentially exceeding 100 billion solar masses. Such objects push the boundaries of what we understand about the formation and evolution of black holes, far surpassing the theoretical mass limits of luminous, accreting black holes in spiral galaxies.
Black Hole12,662,631 次观看 • 1 年前
Artemis II: Closing in on the MoonThe astronauts of Artemis II are now truly venturing into deep space — and the Moon is getting closer every hour.They have already traveled more than 200,000 miles (about 320,000 km) from Earth. With every passing moment, our home planet grows smaller in their windows, while the Moon looms larger ahead. Soon, the Moon’s gravitational pull — its “sphere of influence” — will begin to dominate, gently tugging the spacecraft into its embrace.Right now, the crew is fully immersed in the demanding routines of deep-space flight: Running critical checks on the life support systems that keep them alive Testing communications with Earth across vast distances Practicing manual flight maneuvers And carefully preparing for the dramatic lunar flyby that lies just ahead This is the moment Artemis II transitions from leaving Earth behind to preparing for humanity’s return to the Moon — not just orbiting it, but getting ready to push the boundaries of exploration once again.The journey is entering its most exciting phase.
Black Hole1,395,776 次观看 • 5 个月前
Saturn doesn’t just have rings — it rules an entire miniature solar of 2026, the ringed giant boasts 292 confirmed moons, far more than any other planet, with the number still climbing as astronomers keep spotting tiny new ones. Dominating them all is Titan, a colossal world larger than the planet Mercury. With a thick nitrogen atmosphere, rivers and lakes of liquid methane, and a diameter of 5,150 km, Titan feels more like a planet that got captured than a mere moon.Titan orbits Saturn at a safe distance of about 1.2 million kilometres — well beyond the outer edge of the famous ring system. Those dazzling rings, made of countless icy particles and moonlets, are confined much closer to the planet, while Titan sails majestically around the entire sprawling family of satellites. The sheer crowd of moons — from planet-sized Titan down to kilometer-scale irregular rocks — reveals just how gravitationally chaotic and crowded Saturn’s neighborhood truly is. It’s a dynamic, ever-evolving system where collisions, captures, and gravitational dances continue to shape one of the most spectacular regions in our Solar System.
Black Hole638,562 次观看 • 3 个月前
After 9 years… and 3 BILLION miles… we finally met Pluto For decades, Pluto was nothing more than a faint, blurry speck in our telescopes — a lonely mystery at the frozen edge of our Solar System.Then, in July 2015, NASA’s New Horizons spacecraft screamed past at 30,000 mph… and completely changed everything. What we saw blew our minds: Towering ice mountains rising 11,000 feet high — as tall as the Rockies, but made of frozen nitrogen and methane Heart-shaped plains of smooth, young ice that look eerily like Earth’s polar regions A hazy blue atmosphere with drifting hazes and possible snow Active geology, possible subsurface ocean, and even dunes made of methane iceThis isn’t a dead, cratered rock. Pluto is a dynamic, colorful, living world — one that still surprises scientists years later. The wildest part? Every single pixel of these jaw-dropping images had to travel 3 billion miles back to Earth… taking over 4 hours just to arrive.From a distant dot in the sky to one of the most fascinating worlds we’ve ever explored.That’s the absolute magic of space exploration. What surprised you most about Pluto? by 1994
Black Hole663,340 次观看 • 4 个月前
Scientists just dropped a brutal truth bomb: Even with today’s best tech, no human would survive on Mars longer than ~4 years Why? The radiation is absolutely vicious. After roughly four years, the cumulative dose crosses the "you’re definitely getting cancer or worse" line. Your spaceship can shield you on the journey there and back, but here’s the kicker: once you’re on the surface, there’s no practical way to block it. Pile on too much shielding? Paradoxically makes it worse — thick metal walls actually create secondary radiation showers that fry you even faster.NASA still wants boots on Mars by the 2030s… but yeah, good luck with that lifetime limit. BLACK HOLE. Follow for more cosmic bad news.
Black Hole1,487,062 次观看 • 9 个月前
In the weightless quiet of orbit, an astronaut sets a simple T-handle spinning — and physics takes over. Rotating around its unstable intermediate axis, the object suddenly flips 180 degrees, again and again, in a mesmerizing demonstration of the Dzhanibekov effect that no amount of ground-based intuition can quite prepare you for.
Black Hole28,315 次观看 • 7 天前
