NASA Hubble Space Telescope ended its week with a photo of the heart of the Milky Way--a heaven of densely packed stars with spectacular colors.
The solar system containing Earth resides in a single galaxy called Milky Way. Interestingly, the Milky Way also houses several stars of varying shapes and sizes, so much so that it has no empty space in its skies. The black spaces seen on Earth's skies are simply sections containing stars that have too little light to be seen by the naked eye.
NASA researched deeper into the sparkling starfield and recently captured a densely packed "roughly spherical collection of stars," described as the heart of the Milky Way.
NASA Hubble Telescope Found Heaven: The Heart of the Milky Way!
On Friday, NASA Hubble tweeted, "our own Milky Way Galaxy is home to plenty of spectacular cosmic views!" The post contained an image of numerous stars clustered together.
✨ Our own Milky Way Galaxy is home to plenty of spectacular cosmic views!— Hubble (@NASAHubble) September 24, 2021
Take this week’s #HubbleFriday as an example. Called ESO 520-21, this densely packed collection of stars is located near the center of our galaxy.
Discover more: https://t.co/uBMCxFdi2H pic.twitter.com/fzwxThiXam
NASA called this starfield ESO 520-21. The starfield's center, where many stars are concentrated in a roughly spherical shape, is called Palomar 6. It is worth noting that ESO 520-21 is located close to the center of the Milky Way.
Before this majestic image got rendered, researchers struggled to peer past the interstellar gas and dust. These space matters had unique properties that absorb starlight, making space observations a lot more challenging. During interstellar absorption, some wavelengths of light are more affected than others, making them appear redder than they actually are. Astronomers call this process "reddening."
Nonetheless, NASA captured the fantastic image thanks to the Hubble Space Telescope Wide Field Camera 3 and Advanced Camera for Surveys. ESO 520-21 lies on constellation Ophiuchus, near the celestial equator.
NASA mentioned that Ophiuchus is one of the 48 constellations written by second-century Egyptian astronomer Ptolemy and one of the 88 constellations officially recognized by the International Astronomical Union.
NASA Hubble Images: Massive Einstein Ring!
This is the fourth big discovery Hubble has announced over the week. Previous tweets from the iconic space telescope showed other celestial events, includsing the galaxy ESO 99-4 that lies in a foreground of stars, a result of galactic merging.
This week’s #HubbleClassic is easy on the eyes! 🌟— Hubble (@NASAHubble) September 21, 2021
The galaxy ESO 99-4 lies in a field of foreground stars. ESO 99-4’s peculiar shape probably came as the result of galactic merging in the past, which left it deformed and shrouded in dust: https://t.co/OG6sMXBYoX pic.twitter.com/gKkXhUNNZ3
There are also six massive "dead" galaxies that ran out of cold hydrogen gas. Many researchers are perplexed by this mysterious event.
Hubble found galaxies running on empty! ⛽— Hubble (@NASAHubble) September 22, 2021
Astronomers discovered six massive, "dead" galaxies that had run out of the cold hydrogen gas needed to make stars.
Learn more about this unusual discovery: https://t.co/mkxgsfTuQ2 pic.twitter.com/TvFET61yfV
One of the largest Einstein rings called Molten Ring have also been captured. This revealed two galaxies, one approximately 9 billion light-years away and the other at 4 billion light-years away.
A Hubble image of one of the largest Einstein rings ever seen prompted new research.— Hubble (@NASAHubble) September 23, 2021
This "ring" is created by gravitational lensing – when light from a distant galaxy is warped by the gravity of an object between the light source and the observer: https://t.co/tj8Q1SIBTa pic.twitter.com/RU9c6FxIHc
According to earlier reports, NASA has an ongoing project with ESA (European Space Agency) that aims to research distant space bodies. Spaces fans might have more discoveries to look forward to later this year.