Space & NewSpace
Launches, missions, industry trends and gear — curated for professionals who follow the space sector.
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Real satellite orbits are not the perfect Keplerian ellipses of textbooks. Earth's oblateness, solar radiation pressure, atmospheric drag, and third-body gravity continuously alter every orbit. How satellites detect, model, and correct these perturbations — and what it costs in propellant.
A deep technical analysis of atmospheric re-entry thermodynamics: Rankine-Hugoniot shock relations, Fay-Riddell stagnation heating, ablative TPS mass pyrolysis, plasma sheath ionisation, and the non-equilibrium aerothermochemistry that defines the design envelope for every crewed vehicle returning from orbit.
Lagrange points are positions where a small body can orbit in sync with two larger masses. Why L1, L2, and L3 are unstable but useful, why L4 and L5 are stable and ancient, and what JWST's halo orbit at L2 costs to maintain.
The 25-year post-mission deorbit guideline was adopted in 2002 to control debris growth in LEO. Historical compliance has been ~50%. Mega-constellations of thousands of satellites have made the rule's underlying assumptions obsolete — and regulators are responding.
NASA has announced the Artemis III crew for the first crewed lunar landing since Apollo 17 — targeting the south pole and its permanently shadowed water ice deposits.
How do spacecraft generate power? From silicon solar cells degraded by particle radiation to plutonium-fuelled RTGs running for decades — the engineering of spacecraft power systems and the constraints that determine which technology fits which mission.
Specific impulse (Isp) is the single most important performance metric in rocket propulsion. What it means physically, how it derives from exhaust velocity, why it governs mission architecture, and how every propulsion type compares — from cold gas to ion drives.
After a decade of disruption, the global launch market has consolidated around a handful of serious players. Here's where the competitive landscape actually stands today.
The best planetary cameras for 2026 ranked by sensor performance, frame rate and value. From the ZWO ASI 224MC to the ASI 462MC — what each sensor delivers on Jupiter, Saturn and the Moon.
The best astronomy gifts for adults in 2026, organised by budget. From a €15 red flashlight to a €200 LEGO NASA set — specific picks for every type of space enthusiast at every price point.
The complete astronomy gift guide for adults in 2026. LEGO NASA sets, meteorites, telescopes, star atlases and astrophotography equipment — matched by recipient type and budget. Christmas and birthday picks.
Dedicated astronomy cameras vs DSLRs vs smart telescopes — what actually makes sense for a beginner in 2026. Six cameras reviewed with EU prices and the full system cost breakdown.
Best star trackers for astrophotography ranked by payload, accuracy and portability. From the Sky-Watcher Star Adventurer 2i to the iOptron GEM28 — what each one actually does and who should buy it.
The complete guide to telescope upgrades and accessories in 2026. Eyepieces, Dobsonians, binoculars, collimation tools — what to add first, what makes a real difference, and what to skip.
Nuclear thermal propulsion achieves twice the fuel efficiency of the best chemical rockets. How NERVA demonstrated the technology in 1968, why it was cancelled, and what DRACO and Centaur Z mean for the next generation of deep-space missions.
Smart telescopes in 2026 reviewed honestly: ZWO Seestar S50, Dwarflab Dwarf 3, Unistellar eVscope 2. What live stacking actually is, who should buy one, and who should not.
The best star atlases and astronomy books for adult observers in 2026 — from Turn Left at Orion to Sky Atlas 2000.0. What each book actually does and who needs it.
A neutron star packs more mass than the Sun into a sphere 20 km across. How they form, why pulsars are the most precise clocks in the universe, what magnetars do to spacetime, and what GW170817 told us about dense matter.
The best telescope eyepieces ranked by optical performance, not price. From €25 Plössls to Tele Vue Naglers — what each design delivers, what the specifications mean, and what to buy first.
Buying a meteorite as a gift in 2026: which types are genuine, what to pay, how to avoid fakes, and which specimens make meaningful presents. Campo del Cielo, Sikhote-Alin, pallasites and more.
Best LEGO NASA and space sets for adults in 2026 — Icons Saturn V, Space Shuttle Discovery, ISS and Technic Mars Rover ranked by build quality, accuracy and display value. EU prices.
Sentinel-6B's first validated altimetry data continues the longest unbroken sea level record in history. Sea level rise has nearly doubled in rate since 1993 — here's what the 33-year record now shows.
The best telescopes for beginners in 2026 ranked by real optical performance, not box marketing. Honest picks from €90 to €500 with EU prices and what you'll actually see.
LIGO detects displacements smaller than 1/1000th of a proton's diameter. How laser interferometry turns spacetime distortions into data, what the GWTC catalogue has found, and why LISA will open a new gravitational window in the 2030s.
The complete space gift guide for children in 2026. LEGO space sets, science kits, telescopes and books — matched by age, budget and what each child will actually engage with. Ages 5 to 14.
Ice confirmed at the lunar south pole changes the economics of deep space exploration. How LCROSS found it, what ISRU means for a lunar economy, and why water on the Moon could be the most strategically important resource in the solar system.
Best LEGO space sets for kids in 2026 — City Space, Creator 3-in-1 and junior Technic ranked by build quality, play value and educational content. Ages 5–14, EU prices.
Mars has just enough atmosphere to create heating but not enough to slow a spacecraft to a safe landing speed. How engineers solved the entry, descent and landing problem for Curiosity and Perseverance — and why the solution fails at human-mission scales.
Best space science kits for kids in 2026 — tested for whether the science actually works and what children genuinely learn. Ages 6 to 14, EU prices, no filler kits that teach nothing.
The South Atlantic Anomaly causes satellite memory errors, single-event upsets, and accelerated solar array degradation on every LEO orbit. Here's what it is, why it's expanding, and how operators cope.
The best red flashlights for astronomy in 2026 — why red light preserves night vision, what the science says, and which torch to buy from €15 to €40.
Best space books for children in 2026, age-matched from picture books to teen reference. Ranked by scientific accuracy, not Amazon rating — because a book that gets the science wrong does more harm than good.
A coronal mass ejection reaches Earth in 18–72 hours and can collapse power grids, disable satellites, and disrupt GPS globally. How solar flares work, what the Carrington Event tells us about worst-case scenarios, and how space weather forecasting has evolved.
The best binoculars for stargazing ranked by optical performance and value. Honest picks from €80 to €500 with EU prices, exit pupil explained, and why a tripod changes everything.
China's lunar program in 2025 is on track: Chang'e 7 heads for the Moon's south pole, Long March 10 nears its first flight, and 17 nations have joined the ILRS. Here's where it all stands.
Laser satellite communication transmits data 100× faster than radio with no spectrum allocation. Here's how free-space optical inter-satellite links work and what the Australia-Japan collaboration is achieving.
Sentinel-6B's Poseidon-4 SAR altimeter extends 30+ years of global sea level data. Here's how satellite radar altimetry actually works and why this Copernicus mission is irreplaceable for climate science.
Space radiation is the most serious unsolved problem in human deep-space exploration. How the Van Allen belts work, what galactic cosmic rays do to biology and electronics, and why Mars transit radiation dose remains a hard constraint on mission architecture.
Best telescopes for kids in 2026 — age-specific picks from 6 to 14, with EU prices and what each one will actually show. How to avoid the toy-shop traps that create frustration instead of wonder.
Over 36,000 tracked objects orbit Earth at speeds that make a centimetre of debris as lethal as a hand grenade. Donald Kessler's 1978 cascade model, the current LEO situation, and why remediation may already be urgent.
Complete guide to starting astrophotography in 2026: planetary vs deep-sky vs smart telescope. Budget tiers from €300 to €2,000+ with specific equipment recommendations and what each path actually delivers.
Ion drives and Hall thrusters accelerate xenon to 30–80 km/s and run for years. How electric propulsion works, why it cannot launch from Earth, and how Dawn, Hayabusa2, and BepiColombo redefined what small spacecraft can do.
The best light pollution filters for astrophotography in 2026, ranked by what they actually do. From broadband to 7nm dual-narrowband — which filter for which Bortle scale, and why most guides get this wrong.
How do spacecraft reach the outer planets without carrying impossible amounts of fuel? The physics of Hohmann transfers, gravity assists, and the Oberth effect — why orbital mechanics is the art of doing more with less.
Venturi's MONA LUNA is a European commercial lunar rover targeting the Moon's south pole before 2030. Here's the mission architecture, the technology challenges, and what it means for European space ambitions.
NASA's super pressure balloon completed a full Earth circumnavigation in 16 days at 33 km altitude. Here's the engineering that keeps a football-stadium balloon aloft for months without venting gas.
Best astronomy apps in 2026 ranked by actual utility — SkySafari 7 Pro, Stellarium Mobile, Star Walk 2 and the free tools that complement them. What each app does well and who needs it.
How to collimate a Newtonian or Dobsonian reflector telescope step by step. What collimation is, why it matters, which tools work, and how long it actually takes. No jargon.
Arkadia Space's in-orbit green propellant test validates a non-toxic hydrazine replacement for small satellites. Here's how high-performance green propellants compare to hydrazine — and why the industry is finally switching.
Lunar regolith hazards go beyond abrasion. Razor-sharp, electrostatically charged, and potentially toxic to lungs — here's what makes moon dust a primary engineering challenge for every Artemis surface mission.
Solar Orbiter captured the first-ever images of the Sun's south pole in 2025, revealing a chaotic magnetic field at solar maximum. Here's what the images show and why they matter for space weather forecasting.
The best Dobsonian telescopes in 2026 ranked by aperture, build quality and value. Sky-Watcher Heritage 130P to Skyliner 250PX — what each one shows and who should buy which.
How does spacecraft thermal control work? From MLI blankets and heat pipes to phase change materials — a clear guide to keeping satellites at 20°C across a 270°C temperature swing.
Telescope mounts for beginners explained — alt-azimuth vs equatorial, manual vs GoTo, and which mount type fits which use case. What to buy and what the specifications actually mean.
How does the thermosphere affect LEO satellites? From atmospheric drag to GNSS disruption — and the 2022 Starlink incident that made the stakes impossible to ignore.
Earth's magnetic field protects life from solar wind, enables animal navigation across thousands of kilometres, and its current weakening already affects satellites. Here's why it matters beyond atmospheric shielding.
The complete beginner's guide to amateur astronomy in 2026 — no equipment needed to start. How dark adaptation works, what to observe first, when to buy a telescope, and exactly what to get.
Parker Solar Probe's closest-ever images reveal the solar corona in unprecedented detail — what WISPR captured at perihelion and how the spacecraft survives 1,400°C.