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NASA’s Hubble Spies Spiral’s Edge

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NASA’s Hubble Spies Spiral’s Edge

An edge-on spiral galaxy. Its rusty-brown dust lanes bisect the galaxy lengthwise. Bright-blue points dot the galaxy and seem to be more dense on its left side. A bright foreground star shines just to the left of the galaxy's center. The background is black and dotted with distant galaxies and a smattering of foreground stars, which are easily identified by their diffraction spikes.
This NASA Hubble Space Telescope image features the edge-on, intermediate spiral galaxy NGC 1827. Its rusty-brown dust lanes bisect the galaxy lengthwise. Look for distant galaxies that dot the black background, while a smattering of foreground stars are easily identified by their diffraction spikes.
NASA, ESA, Michael Jones (California Institute of Technology); Image Processing: Gladys Kober (NASA/Catholic University of America)

This NASA Hubble Space Telescope image features the edge-on, intermediate spiral galaxy NGC 1827, located roughly 37 million light-years away in the constellation Columba, the Dove. Hubble captured the image as part of a survey looking at 260 satellite galaxies around 22 Milky Way-like host galaxies within a radius of about 32 million light-years from Earth. Hubble has already observed 111 of these satellite galaxies. The remaining galaxies will take an additional 149 Hubble orbits, one orbit for each galaxy, to observe.

The image, taken with Hubble’s Advanced Camera for Surveys, reveals bright-blue regions along the galaxy’s disk dotted with dark dust lanes where new stars are likely forming. A bright foreground star appears just to the left of the galaxy’s bright central bulge but is located between us and the galaxy. Its four diffraction spikes are the result of light bending around the internal supports that hold Hubble’s secondary mirror.

Low-mass galaxies like the ones in this Hubble observing program provide a way to test the predictions of cosmological models on small scales, which struggle to match observations. The data Hubble gathers will help us better understand and characterize the properties of low-mass galaxies in Milky Way-like systems, allowing researchers to refine cosmological models.

Media Contact:

Claire Andreoli
NASA’s Goddard Space Flight Center, Greenbelt, MD
claire.andreoli@nasa.gov

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NASA Welcomes All Ages, Experience Levels for Space Apps Challenge

Registration is open for the 2026 NASA Space Apps Challenge, a two-day global event on Saturday, Nov. 14 and Sunday, Nov. 15, where teams work to create solutions inspired by NASA’s most ambitious exploration goals and making use of the agency’s free and open data. The annual challenge, often called a hackathon, is an intensive, collaborative problem-solving experience where participants tackle real-world challenges created by NASA subject matter experts.

This year’s Space Apps Challenge collectively supports three major focus areas: returning humans to the Moon, preparing for missions deeper into the solar system, and expanding understanding of the universe. Participants do not have to be programmers. Students, scientists, engineers, designers, storytellers, technologists, and space enthusiasts of all ages and experience levels can contribute their skills.

“At NASA, science is for everyone, and we’re inviting the next generation to help tackle some of humanity’s most critical challenges in space through the NASA Space Apps Challenge,” said Nicky Fox, associate administrator, Science Mission Directorate, NASA Headquarters in Washington. “Everything in NASA Science is interconnected, and this year, students from around the world can use NASA’s powerful data sets to help us build the ultimate interplanetary survival guide – supporting the science that will enable astronauts to thrive on the Moon and, eventually, Mars, while also inspiring ideas that improve everyday life on Earth and in space for the benefit of all.”

Supporting lunar exploration, Artemis planning

NASA continues to advance plans for a sustained human presence on the Moon through the Artemis program and Moon Base. Several of this year’s Space Apps challenges relate to analytical tools, operational considerations, and human‑system needs relevant to lunar missions. These include work related to surface operations at the Moon’s South Pole, the management of environmental constraints such as sunlight and communications windows, as well as approaches for evaluating the logistical and scientific demands of long‑duration lunar stays. Broader system‑level modeling challenges, such as those that simulate outpost operations or consider astronaut health and safety, mirror the complexity of planning for human activity on the lunar surface.

Strengthening readiness for Mars, deep space

NASA’s exploration strategy includes continued robotic exploration of the outer solar system and preparing for future human missions to Mars. Several challenges involve operational concepts for Martian surface activities, integrating data from multiple Mars missions, or reflecting the mission‑design trade‑offs required for deep‑space exploration. Others address fundamental concerns for long‑duration travel, such as monitoring physiological and behavioral health indicators, or examining how engineering and scientific choices shape mission execution in environments far from Earth.

Some of these challenges also align with NASA’s broader exploration portfolio, which includes ongoing work on future missions to destinations such as Jupiter’s moon Europa and Saturn’s moon Titan. By simulating mission‑design decisions or evaluating environmental analogs on Earth, certain challenges offer frameworks related to how NASA prepares for complex operational scenarios throughout the solar system.

Enhancing access to astrophysics

NASA’s astrophysics missions contribute to understanding the structure and history of the universe. In 2026, this includes active missions like Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer (SPHEREx), which is conducting a full‑sky spectral survey, as well as the continued development and deployment of observatories designed to investigate cosmic evolution and exoplanet, which are planets outside our solar system, populations.

Challenges associated with these efforts focus on improving public access to mission data, designing tools that help visualize changes in the sky over time, and supporting broader engagement with the scientific products derived from these missions.

Broader impact across NASA’s mission landscape

Together, these challenges illustrate how NASA’s open data ecosystem enables gold standard science, by freely offering such a wide breadth of information and research. By engaging with the Space Apps event, the entire nation can interact with the kind of real‑world needs defined by the agency.

Registration is available at the NASA Space Apps Challenge. Participants can join in one of 500+ local events, join a team, and select the challenge that they are most interested in addressing during the November hackathon.

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