Side-by-side: Roman, Hubble, JWST, and Euclid compared on mirror size, field of view, wavelength, orbit, and science goals โ with a full comparison table.
Ranked by light-travel time. JADES-GS-z14-0 at z=14.32 leads โ we are seeing it as it existed about 290 million years after the Big Bang. Here's the full top 10.
Ranked by inflation-adjusted total program cost in 2025 USD. Apollo leads at ~$280B, Space Shuttle is second, ISS third. Here's the full top 10 โ and what's program vs. mission cost.
NASA's DART deflected asteroid Dimorphos by 33 minutes โ proving planetary defense works. Plus: every active asteroid mission, Apophis 2029 close approach, and notable flybys.
A 13.8-billion-year timeline of the universe: from inflation and the first atoms to JWST's cosmic dawn images, galaxy formation, and the origins of life on Earth.
Astronomers have confirmed 5,700+ exoplanets since 1992 โ how transit, radial velocity, direct imaging, microlensing, and astrometry each find worlds
K2-18b sits 124 light-years away and JWST found possible dimethyl sulfide โ a molecule made mostly by life on Earth. Here's the biosignature debate in full.
How JWST actually works: 18 gold-coated mirrors, a tennis-court sunshield, 344 single points of failure, and the infrared tricks that revealed the early