Are black holes dead suns?
Yes, many black holes are "dead suns," specifically the collapsed cores of massive stars that ran out of fuel, but smaller stars like our Sun become white dwarfs, not black holes. A star must be much more massive (around 20 times) than the Sun to form a black hole, where gravity crushes its core so intensely that nothing, not even light, can escape.Is a black hole a dying Sun?
The Sun would need to be about 20 times more massive to end its life as a black hole. Stars that are born this size or larger can explode into a supernova at the end of their lifetimes before collapsing back into a black hole, an object with a gravitational pull so strong that nothing, not even light, can escape.Are black holes just dead stars?
Yes, most black holes are the remnants of massive, "dead" stars that collapsed after running out of fuel and exploding in a supernova, but not all black holes come from stars, and not all dead stars become black holes; smaller stars become neutron stars or white dwarfs, while some primordial black holes might form differently. They're considered dead stars because they no longer produce energy through fusion, but their extreme gravity creates a region where nothing, not even light, can escape.How long is 1 minute on a black hole?
One minute near a black hole can mean vastly different amounts of time pass on Earth due to extreme time dilation from intense gravity, potentially ranging from minutes to thousands of years, depending on how close you are to the event horizon (the point of no return) and the black hole's mass; for a distant observer, time slows dramatically, while for the person near the black hole, their minute feels normal until they cross the horizon, after which time essentially stops for them as they reach the singularity.Does the Sun become a black hole when it dies?
No. Stars like the Sun just aren't massive enough to become black holes. Instead, in several billion years, the Sun will cast off its outer layers, and its core will form a white dwarf - a dense ball of carbon and oxygen that no longer produces nuclear energy, but that shines because it is very hot.Do Black Holes Exist? Some Physicists Don’t Think So
Why will the Sun disappear in 2027?
That's because the eclipse, which is set for Aug. 2, 2027, will blanket the Earth in darkness for a whopping (in eclipse time) 6 minutes and 23 seconds, with a path of totality — the area where the moon completely blocks the sun's light — running from Europe and North Africa through the Middle East.What is 90% of the Sun made of?
The sun is made of about three-quarters hydrogen, one-quarter helium, and some other heavier elements like carbon, oxygen and iron, in very small quantities. The hydrogen and helium are in a gas form. But the hydrogen (H) and helium (He) atoms are much closer together in the sun than what you might imagine.Would you age in a black hole?
Yes, you would age in a black hole's vicinity due to gravitational time dilation, but your time would slow down dramatically compared to someone far away, meaning you age much slower relative to them; an hour for you could be years or millennia on Earth, though you'd experience time normally until you cross the event horizon and are inevitably destroyed.Why is 95% of the Universe invisible?
Surprisingly, normal matter turns out to be only a small fraction of what the Universe contains. 95% of the Universe is made up of dark matter and dark energy.What if gravity stopped for 1 second?
If gravity stopped for just one second, the effects would be catastrophic: everything not firmly anchored would launch into space due to Earth's rotation and inertia, the atmosphere would escape, oceans would surge, and the planet's core might explode, leading to planet-wide devastation, massive earthquakes, and the end of life as we know it, even with gravity returning after a moment.Has a star ever survived a black hole?
Yes, astronomers have observed stars that survived close encounters with supermassive black holes, getting stretched (spaghettified) and losing outer layers, but their cores (white dwarfs or remnants) survived and returned for repeat encounters, with one star even coming back for a second "bite" after escaping the black hole's initial grip. This challenges the idea that all stars near black holes are instantly destroyed, showing some can escape and create long-term, recurring events known as Tidal Disruption Events (TDEs).What did Albert Einstein say about black holes?
Albert Einstein's theory of General Relativity predicted black holes, but he was famously skeptical they could form in reality, believing physical processes (like radiation) would stop the complete gravitational collapse, calling them "not convincing" in a 1939 paper where he tried to disprove them, even though his own equations showed they were mathematically possible, leading to a famous quote about "God dividing by zero".What's the closest black hole to Earth?
The nearest known black hole is Gaia BH1, which was discovered in September 2022 by a team led by Kareem El-Badry. Gaia BH1 is 1,560 light-years away from Earth in the direction of the constellation Ophiuchus.Can God survive a black hole?
Whether God can survive a black hole depends on your definition of God and the theological perspective, but most views suggest yes, as God is often seen as transcendent, outside of physical laws, or as an all-powerful being who created black holes, making them unable to harm Him, though some interpretations link black holes to divine concepts like Shiva or the incomprehensible nature of God. From a physics standpoint, nothing with mass or energy can escape, but divine attributes like omnipotence (infinite power) or being pure spirit bypass these limitations, allowing God to exist within or beyond such phenomena.Is spaghettification painful?
A painful death by 'spaghettification' awaits you. Because your feet are closer to the black hole than your head, they feel a stronger pull of gravity, enough to pull you apart.What if the Sun disappeared for 5 seconds?
If the Sun disappeared for just 5 seconds, we wouldn't notice anything for about 8 minutes (light/gravity's travel time), then instantly plunge into darkness and feel Earth begin to drift from orbit, but it would snap back into place and light/heat would return as the Sun reappeared, causing minor orbital nudges, temporary tidal shifts, and a brief power grid disruption, but no lasting catastrophic damage, as the effects of the Sun's gravity and light travel at the same speed.Is space 100% empty?
Space, or outer space, is a vast, near-perfect vacuum largely devoid of matter. This vacuum contains very few particles compared with Earth's atmosphere. However, it's not entirely empty. Space is dotted with scattered matter called the interstellar medium, which includes hydrogen and helium atoms.What does God say about the universe?
Across various faiths, God is described as the divine Creator and Sustainer of the universe, bringing everything into being by His word for His glory, purpose, and to reveal His power, with the cosmos displaying order, vastness, and a test for humanity. Key themes include creation from nothing, the celestial bodies having distinct purposes, and humanity's special place within this grand design, often with the universe expanding or stretching as a testament to His might.How long is 1 light year to 1 year?
As defined by the International Astronomical Union (IAU), a light-year is the distance that light travels in vacuum in one Julian year (365.25 days). Despite its inclusion of the word "year", the term should not be misinterpreted as a unit of time.Why is 1 hour 7 years in space?
The statement that one hour in space is equivalent to 7 years on Earth is not accurate. Time dilation, a concept from Einstein's theory of relativity, does affect time in space relative to different reference frames, but the effect is typically negligible for most space travel scenarios within our solar system.What is spaghettification?
Spaghettification, or the noodle effect, is the extreme stretching and thinning of an object (like a person or star) into a long, noodle-like shape as it falls into a region with an intense gravitational field, most notably a black hole, due to powerful tidal forces that pull harder on the closer parts than the farther parts, ripping it apart. If falling feet-first, your feet feel a much stronger pull than your head, stretching you vertically while compressing you horizontally until you're torn into a stream of particles.Why is the ton 618 so scary?
Deep in the far reaches of the universe lies TON 618, a black hole so massive that it shatters everything we thought we knew about cosmic limits. Estimated to weigh over 66 billion times the mass of our Sun, TON 618 is one of the largest and most powerful black holes ever discovered.How long will our sun last?
Our Sun will last for another 5 to 6 billion years, after which it will run out of hydrogen fuel, expand into a giant red star, and eventually shrink to become a white dwarf, ending its main life cycle as a bright star, though the process of becoming uninhabitable for Earth will begin much sooner, around 1 billion years from now.What keeps the Sun spinning?
The Sun keeps spinning due to inertia, a principle from its formation when a cloud of gas and dust collapsed, conserving its initial angular momentum, much like a spinning ice skater pulling their arms in. It doesn't need an external force to keep it going in the vacuum of space, but its rotation slows slightly over time as plasma flows carry some of that spin away, making its surface rotate slower than its core.What is bigger than the Sun?
Yes, many stars are much bigger than the Sun, with red hypergiants like Stephenson 2-18 and UY Scuti being among the largest known, potentially engulfing the entire inner solar system if placed in our Sun's position, featuring radii over 1,700 times that of our Sun and volumes capable of holding billions of Suns.
← Previous question
Was the Dream SMP deleted?
Was the Dream SMP deleted?
Next question →
How do you get Alpha's howl in PoE 2?
How do you get Alpha's howl in PoE 2?