Technology Report

July 14, 2026

SAR4SaR

AUCKLAND, New Zealand — A small wooden boat is almost invisible to radar. Searchers then comb a lot of water. On July 14, New Zealand Defence Science and Technology said Seascape, the University of Auckland, and DST had that week put the first manufactured radar-reflector prototype in the Hauraki Gulf. The device folds. It has no battery. It is meant to bounce a satellite radar pulse back so the boat lights up in the picture.

The name is Synthetic Aperture Radar for Search and Rescue. Synthetic aperture radar is a satellite camera that uses radio, not light, so it can see through cloud and dark. The commercial name is Glint, from the Auckland startup Seascape. Earth-observation scientist Thomas Dowling and engineer Ella Fasciana built it with Defence Science and Technology, the science arm of the New Zealand Defence Force.

On May 12, 2026, the University of Auckland said Fasciana and Dowling are named on a patent with the university. Fasciana, co-founder and lead researcher of Glint by Seascape, told the university it folds to about the size of a pizza box. Open it, she said, tie it to the boat, and it reflects radar back to satellites overhead.

The reflector does not transmit. Corner plates of aluminum focus a radar pulse and send it back the way a corner mirror sends light. RNZ described the later prototype as two triangular wedges fastened back to back, foil lining the 90-degree corners — what Dowling called an “offset caterpillar.” On a radar image that return looks like a bright starburst. The university says software would scan the imagery for that signature.

Defence Science and Technology said Auckland Coastguard helped tether the manufactured unit to the Anchorite Rock wave buoy for about two weeks of satellite collects and a durability check. DST called that a shift from a science program to an engineering problem: make something durable and cheap enough to manufacture. A Royal New Zealand Air Force P-8A Poseidon was training nearby, the post said. Seascape’s Glint page still says the team is creating the reflectors, not shipping them. In May the university wrote that the company was in the middle of a capital raise aimed at commercialization.

Work started in the fabrication space at Te Pūnaha Ātea — Auckland Space Institute. Fasciana began with origami paper to find a shape that folded flat and still made corners. Computer models screened shapes. Dozens of prototypes were built from corflute, gaffer tape, aluminum foil, and tarpaulins. Early tests at the university’s Ardmore field station asked whether satellites could even see the things from orbit.

The New Zealand Defence Force wrote that the Royal New Zealand Navy then tested a prototype from HMNZS Canterbury near subantarctic Campbell Island. Auckland and NZDF both say the reflector stayed visible to commercial satellites in 50-knot gusts. RNZ reported that the units spun, which pushed the team to add stability. DST director Dr. David Galligan told RNZ the satellite snap showed bright spots on the water.

New Zealand’s Rescue Coordination Centre covers about 30 million square kilometers, NZDF says. In 2023/24 it ran 489 searches. NZDF’s pitch is a smaller search box. Dowling has said the reflector would not replace emergency beacons or radios. Fasciana has talked about a low-cost backup for Pacific fishing boats, including boats whose 406 MHz beacon is broken. Radar satellites do not revisit as often as a beacon pings. RNZ quoted Dowling on a patchwork of commercial satellite data, and on using drift models for a position that may be an hour or two old. The university has also flagged false positives from ice and some waves.

New Zealand’s Ministry of Business, Innovation and Employment lists a Catalyst: Strategic SAR4SAR PhD from June 1, 2026, to May 31, 2029, delivered by the University of Auckland and Seascape. The Catalyst page names U.S. Indo-Pacific Command and Umbra Space as partners. Those are stated partnerships, not an independent test report.