In early February 2026, NASA turned Alaska’s night sky into a high-latitude laboratory, launching two closely related sounding-rocket investigations to probe one of aurora science’s most puzzling features: “black auroras.” These are not the absence of aurora altogether, but dark shapes embedded inside the glowing curtains, patches and stripes that appear to carve holes through the light.
NASA confirmed on Feb. 10, 2026 that both missions, BaDASS and GNEISS, launched successfully from the Poker Flat Research Range near Fairbanks, Alaska. Together, the flights aim to connect what we see (bright and dark auroral structures) with what’s happening electrically in near-Earth space, where charged particles and currents couple the magnetosphere to the upper atmosphere.
1) Twin rocket missions: BaDASS and GNEISS at a glance
The campaign paired two sounding-rocket missions with complementary goals and timelines: the Black and Diffuse Auroral Science Surveyor (BaDASS) and the Geophysical Non-Equilibrium Ionospheric System Science (GNEISS). NASA’s Sounding Rockets “Missions” index lists them as past missions flown from Poker Flat, identifying their dates, rocket types, and principal investigators.
BaDASS flew first, launching Feb. 9, 2026, and targeted the enigmatic “black aurora” phenomenon embedded within broader auroral activity. GNEISS followed on Feb. 10, 2026 with a distinctive back-to-back launch configuration designed to sample the same aurora in rapid succession.
Although they launched on different nights, the missions are linked by a common scientific thread: understanding how auroral processes move energy and electricity through the ionosphere, and how that energy ultimately affects the upper atmosphere, where satellites, radio systems, and navigation signals must operate.
2) Why NASA is studying “black auroras”
“Black auroras” are described by NASA as dark patches or stripes within the aurora, shapes that stand out against surrounding luminous emissions. They look like voids cut into the glowing display, which naturally raises the question: are these simply regions with fewer particles, or signs of something more complex?
NASA’s February 2026 explanations emphasize that prior research suggests black auroras may be tied to electron behavior in an unexpected direction. Instead of electrons streaming downward and exciting atmospheric gases (which produces light), some scenarios imply electrons may be moving upward, potentially escaping to space, creating dark structures amid nearby bright emissions.
This is why BaDASS focused on these features specifically: black auroras may encode information about how electric fields and particle flows are organized above the visible aurora. If the darkness reflects upward-traveling electrons or distinctive electric-field structures, it becomes a powerful clue to how auroral systems balance currents and energy.
3) BaDASS: launch time, altitude, and early performance results
NASA reported that BaDASS launched on Feb. 9, 2026 at 03:29 a.m. AKST (07:29 a.m. EST). The sounding rocket reached a peak altitude of about 224 miles (360 kilometers), putting it squarely in the region where auroral processes couple space plasma to the upper atmosphere.
Early mission performance was described as strong. In a NASA update, BaDASS principal investigator Marilia Samara stated: “All instruments, including technology demonstrations, performed as expected,” and that the mission returned “high-quality data.” For a short-duration flight, instrument performance and clean data return are crucial, because the science depends on capturing rapidly changing auroral structures as the rocket traverses them.
BaDASS’s measurements are intended to help disentangle what black auroras represent physically. By tying in-situ observations to the aurora’s visible structure, scientists can test whether dark features correlate with upward electron motion, distinctive electric fields, or other plasma signatures that don’t produce the same light as their brighter neighbors.
4) GNEISS: two rockets, 30 seconds apart
On Feb. 10, 2026, NASA launched GNEISS as a pair of “twin rockets,” separated by just 30 seconds. NASA gave the launch times as 01:19:00 and 01:19:30 a.m. AKST (05:19:00 and 05:19:30 a.m. EST), a cadence meant to keep both vehicles sampling nearly the same auroral conditions.
The two rockets reached very similar peak altitudes, according to NASA: about 198.3 miles (319.06 km) and 198.8 miles (319.94 km). Matching trajectories and timing helps researchers compare what each rocket sees and reconstruct how conditions vary across the aurora, rather than mistaking spatial structure for time changes, or vice versa.
GNEISS PI Kristina Lynch summarized the mission systems performance in NASA reporting: “all ground stations, subpayloads, and booms functioned as expected,” adding that the team is pleased with the data collected so far. In a mission architecture that depends on coordinated measurements across rockets and ground receivers, every link in the chain matters.
5) The “CT scan” idea: mapping auroral electricity in 3D
NASA has described GNEISS using a compelling analogy: it applies a technique similar to a medical CT scan to reconstruct electrical currents associated with auroras, producing a three-dimensional view of the auroral electrical environment. The goal is not just to measure a single line through space, but to infer the broader structure that surrounds it.
Lynch captured that intent in a NASA quote: “We’re not just interested in where the rocket flies… We want to know how the current spreads downward through the atmosphere.” That focus on current closure, how electrical current completes its path through the ionosphere and atmosphere, is central to understanding how auroras deposit energy and drive atmospheric change.
She also described the approach plainly: “It’s essentially like doing a CT scan of the plasma beneath the aurora.” In practice, that means turning multiple perspectives and signal paths into a volumetric picture of plasma properties and current systems, rather than relying on a single-point measurement.
6) How GNEISS measures plasma and current closure
NASA explains that GNEISS uses two rockets flying through the same aurora along different “slices,” with each rocket ejecting subpayloads and transmitting radio signals that are received by ground stations. The plasma the signals pass through alters them, and those changes can be used to infer plasma density, effectively identifying where electricity can flow most readily.
This multi-element geometry matters because auroral currents are not confined to a simple tube. They spread, branch, and close through the ionosphere in patterns that can vary across relatively small distances. By combining two rocket paths, multiple subpayload sampling points, and ground-based reception, GNEISS aims to convert distributed measurements into a coherent 3D reconstruction.
In other words, the “CT scan” is not just a metaphor for complexity; it reflects a measurement strategy designed to capture structure that a single rocket could miss. The value is in distinguishing localized features from broader current systems and showing how the auroral circuit connects downward through the atmosphere.
7) Why auroral electricity matters for life in orbit
Auroras are beautiful, but the currents that power them are also a form of space weather, energy and momentum transfer that can heat the upper atmosphere and alter winds. NASA links auroral current patterns to how and where energy is deposited, which can change density and dynamics at altitudes that satellites traverse.
When the upper atmosphere heats, it can expand and increase drag on satellites, sometimes unexpectedly. NASA notes operational consequences such as spacecraft encountering more turbulent air than anticipated, which can complicate orbit predictions and mission planning, especially for lower-altitude satellites where drag is a major factor.
Understanding current closure and plasma structure is therefore not just academic. Better maps of auroral electrical environments can improve models that translate geomagnetic activity into atmospheric response, supporting forecasting efforts that help protect satellites, communications, and navigation services.
8) Alaska’s Poker Flat: a natural laboratory for aurora science
Both BaDASS and GNEISS launched from Poker Flat Research Range near Fairbanks, Alaska, a site NASA identifies for these missions and one known for access to frequent auroral activity. Its high-latitude location under the auroral oval offers researchers an opportunity to target active displays with sounding rockets that can reach the key interaction regions.
Sounding rockets are well suited to this kind of science because they can be scheduled for precise windows and flown directly through features of interest. That agility is important for auroras, which can shift rapidly in brightness, location, and structure as solar wind conditions and magnetospheric dynamics evolve.
The February 2026 cadence, BaDASS on Feb. 9 followed by GNEISS on Feb. 10, shows how Poker Flat can support focused campaigns that build a layered understanding: one mission targeting black auroras specifically, and another mapping the broader electrical environment with a “twin rocket” 3D approach.
By Feb. 10, 2026, NASA had confirmed the successful launches of both missions and reported encouraging early engineering and data returns. BaDASS reached about 224 miles (360 km) and delivered “high-quality data,” while the two GNEISS rockets, launched 30 seconds apart, peaked near 198 miles (~319 km) and returned data with ground stations, subpayloads, and booms functioning as expected.
What comes next is the slower work of turning brief, information-rich flights into lasting scientific insight: determining what black auroras reveal about electron flows, and producing a CT-like 3D reconstruction of auroral electricity that clarifies how currents spread downward through the atmosphere. Together, BaDASS and GNEISS represent a tightly coordinated attempt to connect the aurora we see to the invisible electrical architecture that shapes near-Earth space.
