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M82 Cigar Galaxy (Hubble/Webb Side-by-Side)

Edge-on spiral galaxy Messier 82 (M82) has been an object of study by many observatories over the years, including NASA’s Hubble Space Telescope and most recently the James Webb Space Telescope.
This side-by-side comparison shows the same region of M82 as seen by Hubble (left) and Webb (right). Hubble’s visible-light view is limited because of the amount of dust within M82, which shrouds the galaxy’s details. Bright, bluish light radiating from the center is due to star formation. A notable thick lane of dust, black in the center and red around the edges, diagonally stretches across the scene. Thinner strands and clumps of reddish dust cover the majority of the view.
With its ability to observe the near-infrared universe, Webb can pierce through the dusty environment of M82 and reveal what was once hidden to astronomers. With Webb, millions of individual stars within M82’s heart (seen here as luminous blue-white granules) are resolved in unprecedented clarity. Red-orange clumps, most noticeable toward the right, are small dust grains.
About the Object
- R.A. PositionR.A. PositionRight ascension – analogous to longitude – is one component of an object's position.09:55:52.0
- Dec. PositionDec. PositionDeclination – analogous to latitude – is one component of an object's position.69:40:48.99
- ConstellationConstellationOne of 88 recognized regions of the celestial sphere in which the object appears.Ursa Major
- DistanceDistanceThe physical distance from Earth to the astronomical object. Distances within our solar system are usually measured in Astronomical Units (AU). Distances between stars are usually measured in light-years. Interstellar distances can also be measured in parsecs.12 million light-years
About the Data
- Data DescriptionData DescriptionProposal: A description of the observations, their scientific justification, and the links to the data available in the science archive.
Science Team: The astronomers who planned the observations and analyzed the data. "PI" refers to the Principal Investigator.This image was created with Webb data from proposal: 5145 (A. Smercina) and HST data from proposal: 10776 (M. Mountain (STScI), J. Gallagher (University of Wisconsin-Madison), P. Puxley (NSF), K. Noll, H. Bond, C. Christian, L. Frattare, F. Hamilton, Z. Levay, M. Mutchler, W. Januszewski, and T. Royle (Hubble Heritage Team/STScI/AURA))
- InstrumentInstrumentThe science instrument used to produce the data.JWST>NIRCam HST>ACS/WFC
- Exposure DatesExposure DatesThe date(s) that the telescope made its observations and the total exposure time.JWST> 15 March 2025 HST> 27-29 March 2006, 5 Janurary 2024
- FiltersFiltersThe camera filters that were used in the science observations.JWST> F115W, F200W, F335M, F444W HST> F435W, F555W, F658N, F814W
- Object NameObject NameA name or catalog number that astronomers use to identify an astronomical object.M82, The Cigar Galaxy
- Object DescriptionObject DescriptionThe type of astronomical object.Starburst Galaxy
- Release DateJune 23, 2026
- Science ReleaseNASA’s Webb Pinpoints Millions of Stars Within Cigar Galaxy
- CreditImage: NASA, ESA, CSA, Adam Smercina (STScI, Tufts), Thomas Williams (University of Manchester); Image Processing: Alyssa Pagan (STScI)

This image is a composite of separate exposures acquired by the James Webb Space Telescope using the NIRCam instrument and the Hubble Space Telescope using the ACS/WFC instrument. Several filters were used to sample varying wavelength ranges. The color results from assigning different hues (colors) to each monochromatic (grayscale) image associated with an individual filter. In this case, the assigned colors are: JWST image> Blue: F115W, Cyan: F200W, Orange: F335M, Red: F444WHST image> Blue: F435W, Green: F555W, Red: F658N, Red: F814W
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M82 Cigar Galaxy (Webb + Hubble)
Scientists used NASA’s James Webb Space Telescope to image edge-on starburst galaxy Messier 82 and trace its evolutionary history. This Webb and Hubble composite image includes 16.5 million stars (blue-white), dust grains (red-orange), and ionized hydrogen gas (yellow).

M82 Cigar Galaxy (Webb + Hubble Fade)
NASA’s James Webb Space Telescope’s near-infrared observation of M82 is the most recent addition to overall data on this starburst galaxy. The Hubble Space Telescope is one observatory that has previously looked at M82, detailing the gas and dust structure seen in visible light.
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Laura Betz
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
laura.e.betz@nasa.gov








