Side-by-side: Roman, Hubble, JWST, and Euclid compared on mirror size, field of view, wavelength, orbit, and science goals β with a full comparison table.
Governments worldwide spend over $100 billion annually on space. NASA, ESA, CNSA, JAXA, and ISRO each take a radically different approach. Here's the full breakdown of who spends what in FY2025/26, and which programs create the most commercial opportunity.
NASA spends $25B, ESA pools 23 nations for ~$8B β yet both lead in science, Earth observation, and deep space. An honest side-by-side of how they differ.
BepiColombo reaches Mercury orbit in late 2026 after 7 years and 6 flybys. Why Mercury is so hard to reach, what MESSENGER found, and what ESA-JAXA aim to
Inside Arianespace and ArianeGroup: how Europe's launch industry climbed back from a 2024 cadence collapse to fly Ariane 6 five times in 2025, return Vega-C to flight, and book the multi-billion-euro Amazon Kuiper manifest.
NASA's DART deflected asteroid Dimorphos by 33 minutes β proving planetary defense works. Plus: every active asteroid mission, Apophis 2029 close approach, and notable flybys.
The Lunar Gateway: a mini space station in near-rectilinear halo orbit around the Moon. PPE, HALO, international modules, Artemis role, and the 6.5-day
Venus gets more missions in the next decade than the last 30 years: NASA DAVINCI and VERITAS, ESA EnVision, Rocket Lab's private probe, and the phosphine life debate.
Mars Sample Return explained: how NASA and ESA plan to retrieve Perseverance's rock tubes, the $11B budget crisis, the 2024 architecture rethink, and the astrobiology stakes.
Cassini-Huygens: 20 years, 293 Saturn orbits, Titan's methane lakes, Enceladus's ocean plumes, and the 2017 Grand Finale plunge that redefined planetary science.
Germany is ESA's biggest funder at β¬5.4B, runs 55 DLR research institutes, and is racing to launch two private rockets β Spectrum and RFA ONE β by 2026.
80+ countries operate satellites and 40+ have space agencies in 2025. A country-by-country map of space companies, budgets, missions, and Artemis Accords
France built Europe's spaceport, created the Ariane dynasty, and became the third spacefaring nation in 1965. A deep dive into CNES, Kourou, and Ariane 6.
When Iridium 33 and Cosmos 2251 collided in 2009, they made 2,000+ debris pieces. Who pays? The 1972 Liability Convention, FCC rules, and the unresolved
How 23 nations with different languages, budgets, and priorities built Europe's space agency from Cold War wreckage into a global force launching Ariane 6.
Isar Aerospace, RFA, PLD Space, and Orbex are racing to restore Europe's independent access to orbit β from SaxaVord in Scotland to Spain's Miura rocket.
How to land a NASA, SpaceX, ESA, JPL, or Rocket Lab internship: application timelines, citizenship rules, resume tips, and what interviewers actually ask
Mars once held an ocean; today ice lurks beneath Jezero Crater and the polar caps. What NASA and ESA missions reveal about ancient water, astrobiology,
NASA's 2021 class had 18,300 applicants for 10 spots β the real pathways to becoming an astronaut in 2026 via NASA, ESA, ISRO, JAXA, CNSA, and commercial flight programs.