Every rocket, mission, and milestone — explained.
Deep dives on SpaceX, NASA, Blue Origin, Starlink, the ISS, and the people building the new space age. Updated weekly.
The Future of Spaceflight: Ten Things to Watch in the Next Decade
Mars cargo missions, lunar bases, fully reusable Starships, kilometer-class orbital telescopes, and asteroid mining. The space milestones plausible by 2035.
Apollo 11 in Context: Why Landing on the Moon in 1969 Was Almost Impossible
Apollo 11 used computers less powerful than a calculator and worked with paper checklists. The reality of how humans first walked on the Moon — engineering and grit.
Booster Recovery 101: Droneships, Catch Towers, and RTLS
After launch, rocket boosters land back on Earth. The three primary methods: return to launch site, autonomous droneship landing, and catching the booster at the tower.
The Nancy Grace Roman Space Telescope: Hubble's Wide-Field Successor
Roman has Hubble's sharpness — over 100 times the field of view. It will hunt dark energy, find rogue planets, and survey a billion galaxies. Launching 2027.
Cryogenic Propellants: Why Rockets Run on Liquid Cold
Liquid oxygen at -183 °C, liquid hydrogen at -253 °C, liquid methane at -162 °C. Why rockets need cryogenics, what it takes to handle them, and where the engineering pays off.
ISRO: How India Built One of the World's Most Cost-Effective Space Programs
From PSLV to Chandrayaan-3's south polar Moon landing, ISRO punches above its budget. Inside India's space agency — and the new private launchers it is enabling.
Voyager 1 and 2: The 47-Year-Old Spacecraft Still Sending Data
Voyager 1 and 2 launched in 1977. Both still operate from beyond the solar system. How their tech keeps working, what they are sending, and how long they can last.
The Best Stargazing and Satellite-Tracking Apps in 2026
A practical comparison of Launchcast, Stellarium, SkySafari, Heavens-Above, and ISS Detector — what each does best, and which to use when.
Inspiration4: The First All-Civilian Orbital Mission and Why It Mattered
In September 2021, four civilians spent three days in orbit on Crew Dragon — no government astronauts on board. The mission that proved private orbital spaceflight had arrived.
Sierra Space: Dream Chaser, Orbital Reef, and a Lifting-Body Comeback
Sierra Space's Dream Chaser will be the first lifting-body spacecraft to fly to the ISS in decades. Plus Orbital Reef, the inflatable LIFE habitat, and a private spaceflight push.
Starlink and Light Pollution: How Mega-Constellations Affect Astronomy
Mega-constellations leave streaks across telescope images and brighten the radio spectrum. What astronomers measure, what operators have changed, and what is still unsolved.
Reentry: Why Spacecraft Burn (and How They Survive)
A spacecraft returning to Earth at 28,000 km/h hits an atmosphere that converts kinetic energy into 1,650 °C plasma. Here is how heat shields keep humans alive.
NASA Earth Science: How Satellites Watch Our Planet 24/7
Twenty-five active NASA Earth-observing missions measure climate, oceans, ice, fires, and ecosystems. Here is what they see, why it matters, and where to find the data.
Polaris Dawn: The First Private Spacewalk and the Highest Crewed Earth Orbit Since Apollo
In September 2024, four private astronauts flew Crew Dragon to 1,400 km altitude and performed the first commercial EVA. Inside Polaris Dawn — and what comes next.
Hubble vs. James Webb: Two Telescopes, Two Different Universes
They orbit at different distances, see different wavelengths, and answer different questions. A side-by-side look at the two flagship space telescopes.
Stoke Space: The Quiet Bet on a Fully Reusable Second Stage
Most reusable rockets recover only the first stage. Stoke is building Nova — a vehicle that returns the entire rocket. Inside the technology and the team.
NASA's Eyes on the Solar System: The Best Free Space Visualization Tools
Free 3D tools from NASA let you fly through the solar system, follow live missions, and explore exoplanets. A guide to Eyes on the Solar System and friends.
SpaceX Crew-9: How NASA Brought Two Stranded Astronauts Home
When Boeing Starliner could not safely bring its crew home from the ISS, SpaceX Crew-9 delivered a rescue plan. The full story of the most-watched ISS handoff in years.
Why Rockets Have Stages: The Math That Forces Multistage Design
A single-stage rocket cannot reach orbit. The Tsiolkovsky equation tells us why — and why every orbital rocket since 1957 has used at least two stages.
How Many Satellites Are In Orbit? A 2026 Reality Check
In just five years the satellite count tripled. Where the boom is happening, who owns what, and what it means for the night sky.
The James Webb Space Telescope: Five Years of Discoveries That Rewrote Astronomy
JWST has revealed galaxies older than thought possible, weighed alien atmospheres, and photographed planet-forming disks. A tour of its biggest finds — and what comes next.
Augmented Reality Sky Mode: Holding Up Your Phone to Find the ISS
AR sky mode in Launchcast aligns satellite tracking with your phone's camera so you can literally see where to look. Here is the technology that makes it work.
Firefly Aerospace: Alpha, Blue Ghost, and the Path to MLV
Firefly Alpha launches small payloads. Blue Ghost is a NASA-contracted lunar lander. Now MLV — Medium Launch Vehicle — is in development with Northrop Grumman. Inside Firefly.
Starlab: A Preview of the Commercial Space Station Replacing Part of the ISS
A preview of Starlab — the commercial space station from Voyager Space and Airbus that will host astronauts and research after ISS retirement. Modules, capabilities, and timeline.
NASA's Mars Exploration Strategy: From Curiosity to Crewed Landing
How NASA's Mars program evolved from flybys to rovers to sample return — and what the path to a crewed mission looks like through the 2030s and 2040s.
Rocket Engine Types Compared: Solid, Liquid, Hybrid, and Electric
Different engines for different jobs. Solids for boosters, liquids for big lifts, hybrids for safety, electrics for deep space — what each does and why.
OneWeb (Eutelsat OneWeb): The Other Major LEO Broadband Constellation
OneWeb survived bankruptcy, merged with Eutelsat, and now operates a 648-satellite constellation focused on enterprise and government — not consumers. Inside the network.
Dragonfly: NASA Is Sending a Nuclear-Powered Helicopter to Titan
In 2034, a rotorcraft the size of a small car will land on Saturn's moon Titan, hop dozens of kilometers between sites, and search for the chemistry that leads to life.
How Real-Time ISS Tracking Apps Actually Work
Behind every "ISS is over you now" notification is a chain of orbital math. Here is how Launchcast and other trackers compute the station's position to sub-kilometer precision.
Relativity Space: 3D-Printing Rockets, From Terran 1 to Terran R
Relativity prints over 85% of each rocket using massive metal printers. After a successful Terran 1 maiden flight, the company pivoted to a fully reusable medium-lift design.
New Glenn First Flight: A Complete Breakdown of Blue Origin's Historic Launch
A breakdown of New Glenn's historic first flight — the seven BE-4 engines, the booster recovery attempt, what worked, and what New Glenn means for the medium-heavy launch market.
The Karman Line: Where Does Space Begin?
The Karman line is set at 100 km up — but the line is debated, the physics is gradual, and definitions matter for astronaut wings, FAA records, and tourism.
CLPS: How NASA Hires Private Companies to Land on the Moon
The Commercial Lunar Payload Services program funds private lunar landers carrying NASA payloads. Inside the IM-1, IM-2, Blue Ghost, and Peregrine missions.
Amazon Project Kuiper: How It Stacks Up Against Starlink
Amazon's Kuiper constellation is finally launching satellites. How big it will be, how it compares to Starlink, and why it is more than just a copy.
Falcon 9 Booster B1058: The Retrospective on a Legendary First Stage
A retrospective on Falcon 9 booster B1058 — the booster that flew the first crewed Dragon mission and went on to set reuse records before its final flight.
Life After the ISS: The Commercial Space Stations Coming Next
NASA plans to retire the ISS in 2030. Four commercial stations are racing to take its place — Orbital Reef, Starlab, Axiom Station, and Vast's Haven.
Saturn V: The Engineering Marvel That Took Humans to the Moon
A historical and technical tour of Saturn V — the rocket that launched Apollo. F-1 engines, J-2 engines, the math behind the moon mission, and why it remains iconic.
Rocket Lab: How a New Zealand Startup Became America's Second Most Active Launcher
Rocket Lab's Electron flies small payloads, Neutron is coming for medium-lift, and the company's satellite components business quietly funds it all. The full picture.
How a Rocket Works: Stages, Engines, and Throttle Up — Explained
A clear, no-nonsense guide to how rockets work — from Newton's third law to staging, throttle, max-Q, and orbit insertion. Built for curious readers.
LEO, MEO, GEO: A Plain-English Guide to the Major Orbital Regimes
Different jobs need different orbits. From Starlink at 540 km to GPS at 20,000 km to TV satellites at 35,786 km — what each regime does best.
H3 Rocket: Japan's Next-Generation Launch Vehicle
JAXA's H3 rocket is Japan's flagship launcher for the 2020s — designed for lower cost, higher cadence, and continued lunar and deep-space missions.
Europa Clipper: NASA's Mission to a Hidden Ocean World
Europa Clipper is on its way to Jupiter's icy moon to investigate whether the ocean beneath the ice could host life. Here is what it will do, and when.
NASA's Commercial Crew Program: How SpaceX and Boeing Took Over Astronaut Transport
Commercial Crew ended a decade of Soyuz dependence and pioneered NASA's buy-services model. The story of Crew Dragon, Starliner, and what comes next.
Long March 5: China's Heavy-Lift Workhorse, Explained
Long March 5 is China's most powerful operational rocket — the vehicle that launched Tiangong space station modules and the Tianwen Mars mission. Here's how it works.
Starlink Direct to Cell: How Standard Phones Now Connect to Satellites
Direct to Cell turns every modern smartphone into a satellite phone — no app, no special device. Inside the technology and what it means for global connectivity.
Starship V2 vs V3: What's Changing in the Next Generation
A side-by-side breakdown of Starship V2 vs Starship V3 — taller stages, more thrust, Raptor 3 engines, payload, and why V3 unlocks Mars-class missions.
Ariane 6: Europe's New Heavy-Lift Rocket Explained
Ariane 6 is the European Space Agency's next-generation heavy-lift rocket — the successor to Ariane 5. Here's how it works and what it launches.
A Virtual Tour of the International Space Station: Module by Module
The ISS is the size of a football field with the interior volume of a 6-bedroom house. A walkthrough of every module — what they do and who built them.
ULA Vulcan Centaur: The Successor to Atlas V and Delta IV
United Launch Alliance's Vulcan Centaur replaces the Russian-engine Atlas V with American BE-4 engines. Here's how it works and what it launches for the U.S. government.
Artemis III: How NASA Plans to Land the First Woman on the Moon
Artemis III will land humans on the lunar south pole for the first time. Inside the Starship HLS, the suits, the landing site, and the science of looking for water.
Blue Origin: Jeff Bezos's Space Company After 25 Years
Once the slow tortoise to SpaceX's hare, Blue Origin now flies tourists to space, has launched New Glenn to orbit, and builds engines for Vulcan. Here is the inside story.
Rocket Lab Electron and Neutron: The Small-Sat Specialist Goes Big
Rocket Lab's Electron is the most successful small launch vehicle ever. Now Neutron — its medium-lift reusable rocket — is on the way. Here's the full picture.
Apogee, Perigee, and Why They Matter for Every Satellite
Most orbits are ellipses, not circles. Apogee and perigee are the two key points — and they shape everything from solar panel design to mission planning.
NASA SLS: Inside the Most Powerful Rocket Currently Flying
NASA's Space Launch System (SLS) is the rocket carrying Artemis astronauts to lunar orbit. Here's how it works, how it compares to Saturn V, and what its future holds.
NASA's Artemis Program: A Complete Guide to Returning Humans to the Moon
Artemis is NASA's program to land the first woman and first person of color on the Moon. The full architecture — SLS, Orion, Gateway, HLS, suits, and partners.
Mars Sample Return: How NASA Plans to Bring a Piece of Mars Home
Perseverance is collecting cores in Jezero Crater. Here is how NASA and ESA plan to bring those tubes back to Earth — the most ambitious robotic mission ever attempted.
Blue Origin New Glenn: Bezos's Heavy-Lift Answer to SpaceX
New Glenn is the largest rocket Blue Origin has ever built — a partially reusable two-stage heavy-lifter. Here's how it works, what it launches, and how it stacks up against Falcon Heavy.
How to Spot the International Space Station in the Night Sky
The ISS is the brightest moving object in the sky. Here is exactly how to find it, when to look, and how to know what you are seeing.
What Is Starlink? A Complete Guide to SpaceX's Satellite Internet
How Starlink works, how the constellation is structured, what speeds to expect, and how it differs from cellular and traditional internet. Answer everything in one place.
Falcon Heavy Explained: From a Tesla in Space to the Heaviest Payloads
Falcon Heavy is the second-most-powerful operational rocket. Here's how three Falcon 9 cores work together, what it can lift, and the missions only Falcon Heavy can fly.
Artemis II: Humanity's First Crewed Trip Beyond the Moon Since 1972
Inside Artemis II — the 10-day crewed lunar flyby that sets the stage for boots back on the Moon. Crew, trajectory, hardware, and exactly when to watch.
Falcon 9: How SpaceX's Workhorse Rocket Made Reusability Real
Inside Falcon 9 — the rocket that proved orbital boosters can be flown again and again. Engines, drone-ship landings, payload, and why Falcon 9 changed the launch market.
How Orbits Work: A Beginner's Guide to Falling Around Earth
An orbit is just falling, but missing the ground. The intuition behind why satellites stay up, why ISS goes 27,000 km/h, and how Newton predicted it 350 years ago.
SpaceX: From Falcon 1 Failure to Mars Architecture
How a 2002 startup with a single rocket and three failed launches became the largest launch provider on Earth — and what comes next.
SpaceX Starship: The Complete Guide to the Largest Rocket Ever Built
A complete breakdown of SpaceX Starship — height, thrust, payload, Raptor engines, reusability, and what it means for Mars, the Moon, and the future of space travel.
2026 Launch Schedule Outlook: Every Major Mission to Watch
A complete preview of the 2026 spaceflight calendar — Artemis II, Starship operational flights, Mars sample return progress, lunar landers, and record commercial launch cadence.