A NASA-funded sounding-rocket mission, INFUSE-2, will attempt to photograph the Dumbbell Nebula in far-ultraviolet light for the first time during a launch window that opened on 19 October 2026 and runs to 23 October at Poker Flat Research Range in Alaska. The mission was announced on 16 October 2026 by the University of Colorado Boulder's Laboratory for Atmospheric and Space Physics, known as LASP, which leads the project. The flight is planned inside that window; this report does not claim it has already launched.
What happened
INFUSE-2 is led by LASP at the University of Colorado Boulder, with Brian Fleming as principal investigator, according to LASP's announcement on 16 October 2026. The mission carries the Integral Field Ultraviolet Spectroscopic Experiment above the atmosphere on a sounding rocket for a flight of about 15 minutes. Sounding rockets are brief by design: they rise above most of the atmosphere, observe for minutes, and return, which makes them suited to testing new instruments and to observations, such as far-ultraviolet astronomy, that the atmosphere blocks from the ground.
The target is the Dumbbell Nebula, also known as Messier 27. According to LASP, the nebula is the gas cloud shed by a dying star that was once similar to the Sun. It is usually imaged in visible light, and scientists have no far-ultraviolet image of it, LASP said. That gap is the point of the flight: the same familiar object, seen in a part of the spectrum that reveals different temperatures, gases and structures, can show material and processes that visible-light photographs simply do not record.
The instrument is the demonstration as much as the observation. INFUSE-2 demonstrates the first far-ultraviolet integral field spectrograph for astrophysics, according to LASP. An integral field spectrograph combines an image with a spectrum, producing, in effect, an image at every wavelength. Fleming explained the idea in LASP's announcement: “It gives you an image of an object at every wavelength, or color, of light.” Instead of choosing between a picture and a spectrum, researchers get a data cube in which each point in the image carries its own spectrum.
Why it matters
The science goal reaches beyond one nebula. According to LASP, the mission studies how dying stars return material to space, feeding future stars and planets. A star like the Sun does not end its life quietly holding onto its material. It sheds gas, as the Dumbbell Nebula shows, and that returned material becomes part of the reservoir from which later generations of stars and planets form. Observing that shed gas in far-ultraviolet light helps scientists understand its composition, temperature and motion at the stage where it is leaving the star.
The technology goal may matter for longer. LASP described INFUSE-2 as a pathfinder for future flagship observatories, including NASA's Habitable Worlds Observatory, planned for the late 2030s. Large observatories are too expensive to launch with unproven instruments. A 15-minute sounding-rocket flight is a comparatively cheap way to show that a new kind of spectrograph works in space conditions, returns usable data and can be scaled up. If the far-ultraviolet integral field approach performs, mission designers for the 2030s have evidence, not just simulations, to build on.
Companion missions in the same Poker Flat campaign add context. According to the University of Alaska Fairbanks report on the Poker Flat launches, the same campaign includes DUST-III, a miniature laboratory studying how cosmic-dust grains form, in a NASA-JAXA collaboration. The HAARP campaign from October 20 to 24 supports the launches, according to UAF. UAF also noted that the first INFUSE mission flew in October 2023 to study a supernova remnant in Cygnus, which makes INFUSE-2 a follow-on flight applying the same instrument idea to a different kind of object: a dying star's nebula rather than a supernova remnant.
What to watch
First, watch the window itself. The launch window opened on 19 October and runs to 23 October, according to LASP, and sounding-rocket launches depend on weather, range conditions and the right observing conditions on the night. A launch on any day inside that window would be within the announced plan. Until LASP or UAF confirms a launch, the correct description is that the flight is planned inside the window, not that it has happened.
Second, watch for the first far-ultraviolet results from Messier 27. The test of the mission is whether the spectrograph returns a usable image at every wavelength, in Fleming's phrase, and what that reveals about the nebula's gas that visible-light images have not shown. Early instrument data often arrives as performance results before full science papers, and both are worth distinguishing.
Third, watch what the pathfinder claim becomes. If INFUSE-2's technology is cited in planning for the Habitable Worlds Observatory or other future missions, the short Alaska flight will have done the job LASP described. And watch the companion DUST-III results from the same campaign, per UAF: two short flights from one range, studying how stars return material and how cosmic dust forms, are parts of the same larger question — how the material of one generation of stars becomes the material of the next.
Sources: LASP, University of Colorado Boulder, 16 October 2026 and University of Alaska Fairbanks Geophysical Institute. Related reading: more coverage in our Science & Space section.
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