Jets emerge from the cocoon of a newly forming star to blast across space, slicing through the gas and dust of a shining nebula in this new image from NASA’s Hubble Space Telescope.
FS Tau is a multi-star system made up of FS Tau A, the bright star-like object near the middle of the image, and FS Tau B (Haro 6-5B), the bright object to the far right obscured by a dark, vertical lane of dust. The young objects are surrounded by gently illuminated gas and dust of this stellar nursery. The system is only about 2.8 million years old, very young for a star system. Our Sun, by contrast, is about 4.6 billion years old.
FS Tau B is a newly forming star, or protostar, surrounded by a protoplanetary disk, a pancake-shaped collection of dust and gas leftover from the formation of the star that will eventually coalesce into planets. The thick dust lane, seen nearly edge-on, separates what are thought to be the illuminated surfaces of the flared disk.
FS Tau B is likely in the process of becoming a T Tauri star, a type of young variable star that hasn’t begun nuclear fusion yet but is beginning to evolve into a hydrogen-fueled star similar to our Sun. Protostars shine with the heat energy released as the gas clouds from which they are forming collapse, and from the accretion of material from nearby gas and dust. Variable stars are a class of star whose brightness changes noticeably over time.
FS Tau A is itself a T Tauri binary system, consisting of two stars orbiting each other.
Protostars are known to eject fast-moving, column-like streams of energized material called jets, and FS Tau B provides a striking example of this phenomenon. The protostar is the source of an unusual asymmetric, double-sided jet, visible here in blue. Its asymmetrical structure may result from the difference in the rates at which mass is being expelled from the object.
FS Tau B is also classified as a Herbig-Haro object. Herbig–Haro objects form when jets of ionized gas ejected by a young star collide with nearby clouds of gas and dust at high speeds, creating bright patches of nebulosity.
FS Tau is part of the Taurus-Auriga region, a collection of dark molecular clouds that are home to numerous newly forming and young stars, roughly 450 light-years away in the constellations of Taurus and Auriga. Hubble has previously observed this region, whose star-forming activity makes it a compelling target for astronomers. Hubble took these observations as part of an investigation of edge-on dust disks around young stellar objects.
For more information: science.nasa.gov/missions/hubble/hubble-sees-new-star-pro...
Image credit: NASA, ESA, and K. Stapelfeldt (NASA JPL); Image Processing: Gladys Kober (NASA/Catholic University of America)
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This image from the NASA/ESA Hubble Space Telescope shows the gauzy-looking celestial body UGC 5829, an irregular galaxy that lies about 30 million light-years away. Despite the lack of observations of this relatively faint galaxy, UGC 5829 has a distinct and descriptive name: the Spider Galaxy. Perhaps its distorted galactic arms with their glowing, star-forming tips hint at the clawed legs of an arachnid.
The data in this image come from two Hubble observing programs. The first used Hubble’s Advanced Camera for Surveys to look at relatively nearby galaxies in an effort to build color versus brightness diagrams of the stars in these galaxies. Each observation only took one Hubble orbit (about 95 minutes) but provided a valuable archival record of the types of stars in different galaxies and therefore different environments.
The second program used Hubble’s Wide Field Camera 3 to look at star clusters in dwarf galaxies. Their observations leveraged Hubble’s ultraviolet capabilities along with its ability to see fine details to better understand the environment where stars form in dwarf galaxies. The star-forming regions of UGC 5829 are readily visible in this image as bright-pink nebulae or clouds.
Text credit: European Space Agency (ESA)
Image credit: ESA/Hubble & NASA, R. Tully, M. Messa
For more information: science.nasa.gov/missions/hubble/hubble-spots-the-spider-...
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The giant planet Jupiter, in all its banded glory, is revisited by NASA's Hubble Space Telescope in these latest images, taken on January 5-6, 2024, capturing both sides of the planet. Hubble monitors Jupiter and the other outer solar system planets every year under the Outer Planet Atmospheres Legacy program (OPAL). This is because these large worlds are shrouded in clouds and hazes stirred up by violent winds, causing a kaleidoscope of ever-changing weather patterns.
[left image] – Big enough to swallow Earth, the classic Great Red Spot stands out prominently in Jupiter's atmosphere. To its lower right, at a more southerly latitude, is a feature sometimes dubbed Red Spot Jr. This anticyclone was the result of storms merging in 1998 and 2000, and it first appeared red in 2006 before returning to a pale beige in subsequent years. This year it is somewhat redder again. The source of the red coloration is unknown but may involve a range of chemical compounds: sulfur, phosphorus, or organic material. Staying in their lanes, but moving in opposite directions, Red Spot Jr. passes the Great Red Spot about every two years. Another small red anticyclone appears in the far north.
[right image] – Storm activity also appears in the opposite hemisphere. A pair of storms, a deep red cyclone and a reddish anticyclone, appear next to each other at right of center. They look so red that at first glance, it looks like Jupiter skinned a knee. These storms are rotating in opposite directions, indicating an alternating pattern of high- and low-pressure systems. For the cyclone, there's an upwelling on the edges with clouds descending in the middle, causing a clearing in the atmospheric haze.
The storms are expected to bounce past each other because their opposing clockwise and counterclockwise rotation makes them repel each other. "The many large storms and small white clouds are a hallmark of a lot of activity going on in Jupiter's atmosphere right now," said OPAL project lead Amy Simon of NASA's Goddard Space Flight Center in Greenbelt, Maryland.
Toward the left edge of the image is the innermost Galilean moon, Io – the most volcanically active body in the Solar System, despite its small size (only slightly larger than Earth's moon). Hubble resolves volcanic outflow deposits on the surface. Hubble's sensitivity to blue and violet wavelengths clearly reveals interesting surface features. In 1979 NASA's Voyager 1 spacecraft discovered Io's pizza-like appearance and volcanism, to the surprise of planetary scientists because it is such a small moon. Hubble picked up where Voyager left off by keeping an eye on restless Io year by year.
The Hubble Space Telescope has been operating for over three decades and continues to make ground-breaking discoveries that shape our fundamental understanding of the universe. Hubble is a project of international cooperation between NASA and ESA. NASA's Goddard Space Flight Center in Greenbelt, Maryland, manages the telescope. Goddard also conducts mission operations with Lockheed Martin Space in Denver, Colorado. The Space Telescope Science Institute (STScI) in Baltimore, Maryland, conducts Hubble and Webb science operations for NASA.
For additional information: science.nasa.gov/missions/hubble/hubble-tracks-jupiters-s...
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Image credit: NASA, ESA, STScI, Amy Simon (NASA-GSFC)
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This NASA/ESA Hubble Space Telescope image shows LEDA 42160, a galaxy about 52 million light-years from Earth in the constellation Virgo. The dwarf galaxy is one of many forcing its way through the comparatively dense gas in the massive Virgo cluster of galaxies. The pressure exerted by this intergalactic gas, known as ram pressure, has dramatic effects on star formation in LEDA 42160.
The gas and dust that permeates space exerts pressure on a galaxy as it moves. This resistance, called ram pressure, can strip a galaxy of its star-forming gas and dust, reducing or even stopping the creation of new stars. However, ram pressure can also compress gas in the galaxy, which can boost star formation.
The Hubble data used to create this image of LEDA 42160 is part of a project that studied dwarf galaxies undergoing ram pressure stripping that are part of large galaxy clusters, like the Virgo cluster. Studies show that ram pressure stripping can initially cause new stars to form in larger galaxies. The researchers wanted to see if the same holds true for smaller galaxies, like LEDA 42160. The bright patches on LEDA 42160’s lower-right flank may be star-forming regions spurred on by ram pressure stripping. Hubble’s observations of LEDA 42160 will help astronomers determine the processes that created the features we see in this small galaxy.
For more information: science.nasa.gov/missions/hubble/hubble-views-a-galaxy-un...
Image credit: ESA/Hubble & NASA, M. Sun
Text credit: European Space Agency
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M17, also known as the Omega Nebula or Swan Nebula, is one of the largest star-forming regions in the Milky Way galaxy. Hubble’s stunning image of a central portion of the nebula has been colorized to highlight certain wavelengths of light. Green represents oxygen while red reveals hydrogen and infrared light.
The Omega Nebula was discovered in 1745 by the Swiss astronomer Jean-Philippe Loys de Chéseaux. It is located 5,500 light-years from Earth in the constellation Sagittarius. The nebula has an apparent magnitude of 6 and can be seen with a pair of binoculars. M17, which appears near M16 and M18 in the sky, is best viewed on clear nights in August.
M17 contains one of our galaxy’s youngest star clusters, at only 1 million years old. However, many of the young stars in this cluster are impossible to see because of the gas and dust that surrounds them. The powerful radiation from the young stars evaporates and erodes the dense clouds of cold gas in which new stars form. One such pocket of gas is seen at the center of the brightest region of the nebula (near the bottom of this image) and is about 10 times larger than our solar system. Other dense pockets of gas have formed the remarkable dark features jutting inward from the bottom left corner of the image.
Credit: Image credit: NASA, ESA, and A. Kraus (The University of Texas at Austin); Processing: Gladys Kober (NASA/Catholic University of America)
For more information, visit: science.nasa.gov/mission/hubble/science/explore-the-night...
For Hubble's Messier catalog website and information on how to find these objects in the night sky, visit: science.nasa.gov/mission/hubble/science/explore-the-night...
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Tags: Messier Messier Object Messier Catalog NASA Hubble ESA Hubble Space Telescope telescope space telescope cosmos universe space cosmic astronomy Messier 17 M17 nebula Omega Nebula Swan Nebula