this was originally meant to be a physics blog but i find myself posting more about biology related stuff - excuse my inner plant nerd but i like physics too, so:
*cough cough* SPAGHETTIFICATION! a phenomenon where you can become stretched like spaghetti if you enter a black hole.
it’s also known as the tidal effect, and is generally used to describe the vertical stretching or compression of an object into a noodle-like shape in an extremely strong and non homogenous gravitational field.
by non homogenous i just mean that the gravitational field is not the same everywhere, but consists of irregularities. (it is non-uniform)
anyways, a very common example of this is when we’re talking black holes- if i threw you into a black hole, or you happened to fall into one, the gravitational field on one end of your body would be stronger than the other.
this gravitational gradient would mean as you fell, getting closer and closer to the event horizon, your body would become extremely stretched until it would become very very compressed. like spaghetti. but don’t worry, by that time you’d already be dead.
this only happens because of the sheer strength of a black hole’s gravitational field. it’s not really because of its size - but its density. there are lots of objects close or even larger than some black holes, the mass of a black hole is so concentrated in a small area that it absolutely maximises its gravitational pull, which is why not even light can escape it.
this is just one of the relativistic effects of gravity differences, and there are so many cooler ones! for example, pancake detonation.
so stay away from black holes, or you could become stretched like spaghetti or flattened like a pancake.
Galaxy NGC 5584
The brilliant, blue glow of young stars traces the graceful spiral arms of galaxy NGC 5584. Thin, dark dust lanes appear to be flowing from the yellowish core, where older stars reside.
openin’ the door to the microwave one second early because you don’t need all the hootin’ and hollerin’
2024 Solar Eclipse from the ISS.
(Credit: NASA Johnson)
Astronomy Picture of the Day
2025 January 28
Comet G3 ATLAS over Uruguay
A foreground grass field is shown below a distant field of stars. On the grass field are some trees. Dwarfing the trees, in the sky, is a comet with a long tail.
Image Credit & Copyright: Mauricio Salazar
Explanation: Comets can be huge. When far from the Sun, a comet's size usually refers to its hard nucleus of ice and rock, which typically spans a few kilometers -- smaller than even a small moon. When nearing the Sun, however, this nucleus can eject dust and gas and leave a thin tail that can spread to an enormous length -- even greater than the distance between the Earth and the Sun. Pictured, C/2024 G3 (ATLAS) sports a tail of sunlight-reflecting dust and glowing gas that spans several times the apparent size of a full moon, appearing even larger on long duration camera images than to the unaided eye. The featured image shows impressive Comet ATLAS over trees and a grass field in Sierras de Mahoma, San Jose, Uruguay about a week ago. After being prominent in the sunset skies of Earth's southern hemisphere, Comet G3 ATLAS is now fading as it moves away from the Sun, making its impressive tails increasingly hard to see.
Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)
NASA Official: Amber Straughn
A service of: ASD at NASA / GSFC,
NASA Science Activation
& Michigan Tech. U.
This planet orbits around two stars, causing irregularities in its orbit, making it vary between 95 and 93 days. Although its orbit will keep being stable for another ten million years, its angle towards us will change, meaning that we can't see another transit until 2031.
The Crew Pressure Vessel of Enterprise (OV-101) being lowered into the test chamber to a pressure test.
Date: January 21, 1975
NASA ID: MH75-6720