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Hey, neighbor!

The Andromeda Galaxy is the nearest major galaxy to ours, at a distance of about 2.5 million light-years.

This #hubbleclassic view shows just a portion of Andromeda. Hubble surveyed 2,753 star clusters in this galaxy and found there’s a consistent distribution from massive stars to small stars, and this ratio is the same in our own stellar neighborhood here in the Milky Way!

Image credit: NASA, ESA, J. Dalcanton, B.F. Williams, L.C. Johnson (University of Washington), and the PHAT team

#nasa #hubble #classic #andromeda #galaxy #space #stars #science #astronomy

About 390 million light-years away, the galaxy Z 229-15 is home to a supermassive black hole at its core.

Material sucking into the black hole is drawn into a swirling disk, which gets so hot that it releases a large amount of energy – hence the bright central region seen in this #hubblefriday image.

This region is known as an active galactic nuclei, or AGN. Z 229-15 is also classified as a quasar, which is a type of AGN that are both extremely bright and distant. Often, an AGN is so bright that the rest of the galaxy cannot be seen; however, Seyfert galaxies like this one are active galaxies that host bright AGNs while remaining observable.

Clearly, astronomical classification can get tricky!

Image credit: ESA/Hubble & NASA, A. Barth, R. Mushotzky

#nasa #hubble #friday #galaxy #space #stars #science #astronomy #universe

Saturn is known for its iconic rings.

And with Hubble's help, now we know that these rings are also heating the giant planet's upper atmosphere!

This phenomenon hasn't been seen before in our solar system, but this unexpected interaction between Saturn and its rings could provide a tool for predicting if planets around other stars have ring systems as well.

The evidence comes from an excess of ultraviolet radiation detected by Hubble and other NASA missions, seen as a spectral line of hot hydrogen in Saturn's atmosphere. This ultraviolet Hubble image shows the hydrogen emissions, brightest above the equatorial region.

Image credit: NASA, ESA, Lotfi Ben-Jaffel (IAP & LPL)

#nasa #hubble #saturn #news #planet #space #science #astronomy #universe #telescope

A pulse of intense radiation swept through our solar system that astronomers nicknamed the BOAT: the brightest of all time.

Several NASA missions have followed up to study this gamma-ray burst, which scientists believe was caused by the birth of a black hole that formed when the core of a massive star collapsed under its own weight.

As that new black hole quickly consumes surrounding matter, it blasts out jets of material in opposite directions that contain particles accelerated to almost the speed of light, emitting X-rays and gamma rays as they stream into space.

After such an event, astronomers expected to detect a supernova in the weeks following, but haven’t found it so far – though the burst did occur in a part of the sky just a few degrees above the plane of our Milky Way Galaxy, where thick dust cam dim incoming light.

Astronomers have used Hubble and NASA's James Webb Space Telescope to try and detect this supernova since the telescopes’ infrared capabilities can peer through cosmic dust. It’s proven elusive so far, but future observations are planned over the next few months.

This Hubble image combines observations taken one and two months after the eruption, and shows the infrared afterglow of the gamma-ray burst, designated by the small, superimposed circle. Given its brightness, the burst's afterglow may remain detectable by telescopes for years to come.

Image credit: NASA, ESA, CSA, STScI, A. Levan (Radboud University); Image Processing: Gladys Kober

#nasa #hubble #news #astronomy #space #stars #science #blackhole #telescope #universe

Can you spot the supernova remnant?

SNR 0509-68.7 is the bright, irregular region of reddish dust near the upper center.

After a star's explosive death in a supernova, the left-behind gas and dust are known as a supernova remnant.

The one seen in this #hubbleclassic image resides about 160,000 light-years away in the Large Magellanic Cloud, which is a neighboring galaxy to our own Milky Way.

Image credit: NASA, ESA, and Y.-H. Chu (Academia Sinica, Taipei)

#nasa #hubble #classic #supernova #stars #space #science #astronomy #nebula

Welcome to the galaxy JW100.

Located about 800 million light-years away, it resides in the constellation Pegasus.

Seen at the lower right of this #hubblefriday image, JW100 is known as a "jellyfish" galaxy because of its tendril-like streams of star-forming gas.

These tendrils form in a process called ram pressure stripping, which occurs when a galaxy comes in contact with diffuse gas within a cluster of galaxies. As the galaxy moves through the gas, the gas acts like a headwind by stripping gas and dust away from the galaxy.

Image description: A thin spiral galaxy is seen edge-on in the lower right. Its bulge and arms are very bright, mixing reddish and bluish light. Patchy blue trails extend below it, resembling tentacles, made from star-forming regions. Six small, reddish elliptical galaxies are scattered around. A very large elliptical galaxy with two cores sits by the top of the frame.

Image credit: ESA/Hubble & NASA, M. Gullieuszik and the GASP team

#nasa #hubble #friday #galaxy #space #stars #jellyfish #astronomy #universe

We’ve got an outer planet weather report!

Hubble regularly checks in on the outer planets in our solar system to monitor changes in seasons and atmospheres.

In these recent images of Jupiter, a “vortex street” of storms rage in the lower northern latitudes, seen as a wave pattern in the first image.

Meanwhile, Jupiter’s famous Great Red Spot continues to storm in the second image, but it’s actually shrunken down to the smallest size it’s ever been over observations records from the past 150 years. But for context, the storm is still big enough to swallow our entire Earth!

Over at Uranus, these two images taken in 2014 and 2022 show the planet’s unusual orbit, which takes 84 years as it rolls on its side around the Sun. The latter image displays Uranus’s hazy north pole, with several little storms along its boundary.

Jupiter images credit: NASA, ESA, STScI, Amy Simon (NASA-GSFC), and Michael H. Wong (UC Berkeley); Image Processing: Joseph DePasquale (STScI)

Uranus images credit: NASA, ESA, STScI, Amy Simon (NASA-GSFC), and Michael H. Wong (UC Berkeley); Image Processing: Joseph DePasquale (STScI)

#nasa #hubble #jupiter #uranus #planet #space #news #weather #universe #astronomy