Hubble Ultra Deep Field

Science Services’ Science Program series booklet Moon. Nelson Doubleday - 1967.

Artemis II Stacking Operations Update

Teams with NASA’s Exploration Ground Systems Program continue stacking the SLS (Space Launch System) rocket’s twin solid rocket booster motor segments for the agency’s Artemis II mission, inside the Vehicle Assembly Building (VAB) at NASA’s Kennedy Space Center in Florida. Currently, six of the 10 segments are secured atop mobile launcher 1 with the right […] from NASA https://ift.tt/1uI7Dtq

NGC 1999

NGC 1999 is a reflection nebula located in the constellation Orion.

It is notable for its striking appearance, which includes a dark patch that resembles a hole in the surrounding gas and dust.

This dark region is often referred to as the "hole" in NGC 1999, and it is thought to be a result of the absorption of light by the dust in the nebula.

Credits: ESA/Hubble & NASA, ESO, K. Noll

Some sketches from my trip last week

Science Services’ Science Program series booklet Man in Space. Nelson Doubleday - 1965.

Stunning New Images of Jupiter From NASA’s Juno Spacecraft (read article here)

Aurora on Saturn captured by the Hubble Telescope

The Ghost Nebula

The Ghost Nebula, also known as LBN 762, is a dark nebula located in the constellation Cassiopeia.

It is named for its ghostly appearance in images taken in infrared light, where it appears as a dark silhouette against the backdrop of brighter stars and gas.

Credits: NASA, ESA, and STScI; Acknowledgment: H. Arab (University of Strasbourg)

Feel small now? Yup, we said the same thing! This is the comparison

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.