Space
Explore the educational catalogue, one Discovery at a time.
- Archive 00477
The computer that landed Apollo 11
- Archive 00524
Sampling an ocean without landing on its moon
- Archive 00525
The stellar lighthouse that does not switch off each turn
- Archive 00526
Mapping Venus through its clouds
- Archive 00527
The galaxy cluster that acts as a lens
- Archive 00528
The spectral clue to a hydrated Moon
- Archive 00529
Why Webb carries its own shade
- Archive 00530
The oldest light is not a picture of the beginning
- Archive 01416
Why Mercury has extreme days and nights
- Archive 01417
Venus heats beneath a thick atmosphere
- Archive 01418
Mars preserves traces of ancient water
- Archive 01419
Jupiter carries a powerful magnetic environment
- Archive 01420
Saturn’s rings are a disk of separate particles
- Archive 01421
Uranus rotates with an unusually tilted axis
- Archive 01422
Neptune’s weather runs far from sunlight
- Archive 01423
Pluto belongs to a population beyond Neptune
- Archive 01424
A comet grows an atmosphere near the Sun
- Archive 01425
Asteroids preserve different early materials
- Archive 01426
Meteorites bring samples without a spacecraft
- Archive 01427
Why the Moon keeps one face toward Earth
- Archive 01428
A solar eclipse is a moving shadow
- Archive 01429
Tides stretch an ocean around a planet
- Archive 01430
Planetary craters record an incomplete history
- Archive 01431
The Sun balances inward gravity and outward pressure
- Archive 01432
Fusion changes nuclei inside a star
- Archive 01433
Sunspots trace magnetic activity
- Archive 01434
A star’s colour is a clue to temperature
- Archive 01435
A stellar spectrum identifies more than colour
- Archive 01436
Parallax measures a nearby star by shifting viewpoint
- Archive 01437
A Hertzsprung-Russell diagram organizes stellar lives
- Archive 01438
Stars form inside collapsing clouds
- Archive 01439
A red giant changes the structure of a star
- Archive 01440
A white dwarf cools without ordinary fusion
- Archive 01441
A supernova redistributes stellar material
- Archive 01442
A neutron star compresses matter beyond atoms
- Archive 01443
A black hole has an event horizon
- Archive 01444
An accretion disk makes falling matter luminous
- Archive 01445
The Milky Way is a galaxy seen from within
- Archive 01446
Spiral arms are patterns of star formation
- Archive 01447
Elliptical galaxies contain many stellar orbits
- Archive 01448
Galaxies merge without frequent stellar collisions
- Archive 01449
Dark matter is inferred through gravitational effects
- Archive 01450
Expansion changes the separation of distant galaxies
- Archive 01451
Redshift stretches the light arriving from galaxies
- Archive 01452
A light-year measures distance rather than age
- Archive 01453
Looking farther away means looking further back
- Archive 01454
The cosmic web organizes galaxies into structure
- Archive 01455
Dark energy names a problem in cosmic expansion
- Archive 01456
A reflecting telescope gathers light with a mirror
- Archive 01457
A radio telescope measures invisible wavelengths
- Archive 01458
Infrared astronomy sees cool objects and dust
- Archive 01459
X-ray astronomy needs detectors above the atmosphere
- Archive 01460
Adaptive optics corrects a turbulent view
- Archive 01461
An exoplanet transit briefly dims a star
- Archive 01462
A wobbling star can reveal an unseen planet
- Archive 01463
Gravitational waves measure a changing separation
- Archive 01464
Spectroscopy searches an exoplanet atmosphere
- Archive 01465
An orbit is a continuous gravitational fall
- Archive 01466
A rocket carries the reaction mass it needs
- Archive 01467
Staging discards mass that no longer helps
- Archive 01468
A gravity assist exchanges motion with a planet
- Archive 01469
A spacecraft at a Lagrange region still needs navigation
- Archive 01470
Reentry turns orbital motion into heat
- Archive 01471
Microgravity changes the demands on a human body
- Archive 01472
A space station recycles part of its water supply
- Archive 01473
Voyager uses a distant radio conversation
- Archive 01474
A Mars rover chooses a path across uncertain ground
- Archive 01475
OSIRIS-REx brings an asteroid sample home
- Archive 01476
Hayabusa2 samples a dark carbon-rich world
- Archive 01477
New Horizons turns a distant point into a landscape
- Archive 01478
The Parker Solar Probe studies the solar wind
- Archive 01479
A planetary mission avoids carrying Earth life outward
- Archive 01480
A spacecraft clock helps measure a distant position
- Archive 01481
An impact experiment tests asteroid deflection
- Archive 01482
A launch window is a meeting arranged in motion