Analog astronauts: How living underwater can prepare humans for space missions

space.com Oct 26, 2026

Analog astronauts: How living underwater can prepare humans for space missions

Curated by Shubham · TechCapsules · Oct 26, 2026

AI-summarised brief · reviewed before publication

Dr. Michaela Musilova, an award‑winning astrobiologist and explorer, has led 40 simulated Moon and Mars missions—the most of any commander—to date. She founded the nonprofit XtremeFrontiers, which is launching the Astro Seven Summits project, a world‑first program that pairs ascents of each continent’s highest peak with NASA‑backed scientific research, educational outreach, and documentary filming. Musilova also consults for global firms on Mars missions and museum exhibitions, including the Smithsonian, and has conducted research on all seven continents. Her achievements have earned her spots on Forbes 30 Under 30, the Top 100 Women in Aerospace and Aviation, and the Emerging Space Leaders Grant. She is a frequent keynote speaker, media interviewee, and co‑author of the biography “Woman from Mars.”

💡 Why It Matters

· By merging extreme terrestrial expeditions with space research, Musilova creates real‑world testbeds for technologies and human performance that can accelerate future interplanetary missions.

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Record breaker! Astronomers spot powerful cosmic explosion that lasted 27 days

Astronomers have identified GRB 220706A, a gamma‑ray burst that remained active for approximately 27 days, surpassing the previous record of six days for delayed X‑ray flaring. Detected on July 6, 2022, the burst’s prolonged activity suggests an ongoing central engine, possibly a magnetar or interaction with surrounding material. The event also produced a bright supernova, hinting at a massive progenitor star. This unprecedented duration challenges current models of ultra‑long GRBs and their underlying mechanisms.

💡 The 27‑day flare forces astronomers to reconsider the energy sources that can sustain gamma‑ray bursts, potentially redefining the boundary between ordinary and ultra‑long events.

space.com · Oct 26

NASA ends Swift space telescope mission after failed rescue attempt

NASA announced on Oct. 23 that the Neil Gehrels Swift Observatory’s mission has ended after more than two decades of operation. Launched in 2004 to study gamma‑ray bursts, Swift far outlasted its two‑year design life, delivering data on over 2,000 bursts, 1,400 supernovae and numerous other high‑energy phenomena, and supporting roughly 7,000 scientific papers. In September 2025 NASA contracted Arizona‑based Katalyst Space Technologies to rescue the aging satellite, whose orbit was decaying due to atmospheric drag. Katalyst built the LINK spacecraft to rendezvous, grapple and boost Swift to a higher orbit. After launch on July 3, 2026, LINK suffered propulsion and reaction‑wheel failures, spun out of control and could not capture Swift, though it photographed the target from 12‑15 km away. Swift is expected to re‑enter Earth’s atmosphere within weeks, marking the close of a landmark astrophysics mission.

💡 The failed rescue underscores the technical hurdles of on‑orbit servicing for non‑serviceable satellites, shaping future strategies for extending the life of valuable space assets.

space.com · Oct 26

On this day in space! Oct. 26, 2004: Cassini spacecraft takes 1st-ever…

On October 26 2004 NASA’s Cassini spacecraft performed its second flyby of Saturn’s moon Titan, approaching to within 745 miles (1,200 km) – roughly 300 times closer than its July 3 encounter. From this altitude Cassini captured hundreds of high‑resolution images, delivering the first detailed views of Titan’s surface. The photos revealed a continent‑sized bright region named Xanadu, along with apparent mountain ranges, a large basin and smooth plains, confirming that Titan’s hazy atmosphere concealed a complex, Earth‑like terrain. These observations also enabled precise measurements of atmospheric density and composition, information crucial for guiding the European Huygens probe that would descend to Titan’s surface in January 2005. Cassini ultimately completed 127 Titan flybys over its 13‑year Saturn mission, ending in 2017.

💡 The images transformed Titan from a mysterious, cloud‑shrouded world into a tangible planetary body, shaping mission design and fueling comparative studies of early Earth analogs.

spacenews.com · Oct 26

Flexell Space Establishes French Subsidiary to Strengthen European Presence

Flexell Space, a developer of space‑solar solutions, announced the creation of FLEXELL SPACE FRANCE SAS in Paris. The subsidiary will serve as a hub for European customers, accelerating technical reviews, supply‑chain planning and contract negotiations as the company moves toward volume production of tandem solar cells and power modules. Flexell is currently in talks with multiple European firms about collaboration agreements and supply, requiring detailed coordination on performance, dimensions, reliability and delivery schedules. The French entity will link European partners with Flexell’s R&D and manufacturing teams in Korea, enabling faster feedback incorporation and alignment on production schedules. The company aims to deepen relationships across France, Germany, Italy and Lithuania and explore strategic joint development with space firms and research institutes.

💡 Proximity to European clients lets Flexell turn technical talks into concrete supply contracts, speeding the rollout of next‑gen space power hardware.

teslarati.com · Oct 26

How SpaceX Is raising Raptor’s sea-level thrust while holding engine mass steady

SpaceX’s Raptor engine family has progressed from the first version’s 185 metric‑ton sea‑level thrust at 2,080 kg to a projected Raptor 4 delivering 300 tons at roughly the same mass as Raptor 3. Each iteration has raised thrust while shedding weight: Raptor 2 achieved 230 tons at 1,630 kg, Raptor 3 targets 280 tons at 1,525 kg with flight ratings near 250 tons, and Raptor 4 is expected to hit 300 tons without a mass increase. Across the series, thrust‑to‑weight has improved by more than 60 percent. With 33 engines, Super Heavy could generate about 9,900 tons of liftoff thrust—nearly three times Saturn V’s output—enhancing initial acceleration, reducing gravity losses, and freeing capacity for additional propellant, payload, or engine‑out margins, thereby advancing Starship’s high‑payload, reusable launch ambitions.

💡 By boosting thrust per engine while keeping mass flat, SpaceX extracts more performance from the existing Super Heavy architecture, enabling larger payloads and more efficient missions without redesigning the booster.

space.com · Oct 26

‘More missions, more often’: NASA is overhauling how it selects science missions

NASA announced Competition Model 2.0 (CM 2.0) to overhaul science‑mission selection, aiming to cut costs, shorten timelines, and prioritize scientific merit over early engineering detail. The new process reduces the initial proposal burden, shortens the 35‑month cycle to about 19½ months for many programs, and introduces a single‑stage selection for the smallest missions. CM 2.0 applies to Explorer, Discovery, New Frontiers, Astro‑Probe, MIDEX, Earth Explorer, SMEX, and Earth Venture programs, while flagship missions retain the current procedure.

💡 By streamlining evaluation and lowering entry barriers, CM 2.0 could accelerate the launch of diverse, cost‑effective missions, expanding scientific output and fostering broader participation from universities and commercial partners.