🪐 Astronomy & Space Exploration
Learn astronomy basics including planets, stars, galaxies, eclipses, comets, black holes, and the universe.
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0:20What Are Shooting Stars?
A "shooting star" isn't a star at all -- it's a tiny particle, often no bigger than a grain of sand, burning up in the atmosphere.
0:20Planetary Alignment 2026: Uranus, Saturn & Neptune
A look at Uranus, Saturn, and Neptune sharing the same region of sky in 2026 -- a reminder of how planetary motion works.
0:20A Rare Cosmic Event Is Coming
A total solar eclipse happens when the Moon passes directly between the Sun and Earth, casting its shadow on the surface.
0:203... 2... 1... Liftoff
Every rocket launch is a real-time balance of thrust, fuel, and precision engineering -- the final countdown explained.
0:20The Perseid Meteor Shower
The Perseids are one of the most reliable, brightest meteor showers of the year, peaking every August.
0:20What is a Planetary Parade?
A planetary parade is when several planets appear to line up in the same part of the sky, all roughly along the ecliptic.
0:20What is a Meteor Shower?
A meteor shower happens when Earth passes through a stream of debris left behind by a comet.
0:15What is a Supermoon?
A supermoon happens when a full moon coincides with perigee -- the point in the Moon's orbit where it is closest to Earth.
0:15What is Dark Matter
Dark matter doesn't emit, absorb, or reflect light, so it can't be observed directly -- but its gravitational effects reveal it.
0:20Why is a Solar Eclipse Rare?
Total solar eclipses require the Moon's shadow to fall in a narrow path on Earth's surface -- a precise alignment.
0:10What is a Black Hole?
A short introduction to black holes -- regions of space where gravity is so strong that nothing, not even light, can escape.
NASA Black Hole Visualization Takes Viewers Beyond the Brink
A NASA supercomputer visualization tracking a camera as it approaches, orbits, and crosses the event horizon of a supermassive black hole.
6:53The James Webb Space Telescope's Science Goals: Space Sparks Episode 1
An ESA/Webb Space Sparks episode introducing the science goals of the NASA/ESA/CSA James Webb Space Telescope.
Space Sparks Episode 7: Webb's Star-Filled Portrait of the Pillars of Creation
ESA/Webb Space Sparks episode on Webb's star-filled portrait of the iconic Pillars of Creation in the Eagle Nebula.
Space Sparks Episode 13: Webb Captures the Iconic Horsehead Nebula in Unprecedented Detail
ESA/Webb Space Sparks episode on Webb's unprecedented, detailed view of the iconic Horsehead Nebula.
Webb's First Images: ESA/Webb Space Sparks Episode 3
ESA/Webb Space Sparks episode introducing the James Webb Space Telescope's first full-color science images, released July 2022.
NASA's Pandora Mission Closer To Probing Alien Atmospheres
NASA overview of the Pandora mission, a small satellite designed to help separate exoplanet atmosphere signals from their host stars' own light.
Moon Phase and Libration, 2025
NASA visualization of the Moon's phase, libration, and apparent size throughout 2025, at hourly intervals.
NOAA Satellites View Total Solar Eclipse
NOAA's GOES-16 and GOES-18 satellites track the Moon's shadow crossing North America during the April 8, 2024 total solar eclipse.
Black Hole Pulse Animation
A NASA Goddard animation of the pulsing X-ray "heartbeat" of black hole system IGR J17091-3624.
Black Hole Accretion Disk Simulation
A NASA Goddard general-relativity simulation visualizing the accretion disk and light-bending physics around a black hole.
The Helix Nebula (Webb, Hubble and Spitzer views)
A comparison video of the Helix Nebula as seen by the James Webb, Hubble, and Spitzer space telescopes.
Pan of Interacting Galaxies Arp 142
A panning video across Webb's NIRCam and MIRI image of the interacting galaxy pair Arp 142.
Space Sparks Episode 11: Webb Celebrates First Year of Science
An ESA/Webb Space Sparks episode marking Webb's first year of science with a close-up look at the birth of sun-like stars.
Space Sparks Episode 8: Webb Catches Fiery Hourglass
ESA/Webb Space Sparks episode on a fiery hourglass-shaped structure around a still-forming star, imaged by the James Webb Space Telescope.
Space Sparks Episode 10: Wolf-Rayet 124, A Star in Transition
ESA/Webb Space Sparks episode on Wolf-Rayet 124, a rare, rapidly evolving massive star captured by Webb.
Space Sparks Episode 14: First-of-its-Kind Detection in Striking New Webb Image
ESA/Webb Space Sparks episode covering a first-of-its-kind detection made in a striking new James Webb Space Telescope image.
Space Sparks Episode 22: NGC 5134
ESA/Webb Space Sparks episode on NGC 5134, a spiral galaxy featured as a Picture of the Month.
Space Sparks Episode 25: A Beacon of Light in Swirls of Dust
ESA/Webb Space Sparks episode on a young star system glowing as a beacon of light within surrounding swirls of cosmic dust.
Space Sparks Episode 20: The Red Spider Nebula
ESA/Webb Space Sparks episode on the Red Spider Nebula, a planetary nebula imaged by the James Webb Space Telescope.
Space Sparks Episode 27: Webb Pinpoints Millions of Stars Within the Cigar Galaxy
ESA/Webb Space Sparks episode on Webb pinpointing millions of individual stars within the Cigar Galaxy, M82.
Space Sparks Episode 26: Webb Unveils Young Stars Across Every Stage of Formation
ESA/Webb Space Sparks episode on Webb unveiling young stars captured across every stage of stellar formation.
Space Sparks Episode 17: Webb Showcases M82
ESA/Webb Space Sparks episode showcasing M82, the Cigar Galaxy, as the June 2025 Picture of the Month.
Space Sparks Episode 24: Webb Looks Into the Cradles of Star Clusters
ESA/Webb Space Sparks episode on Webb's look into the cradles of star clusters, finding massive clusters emerge faster than expected.
Space Sparks Episode 16 Light: Actively Forming Star System
ESA/Webb Space Sparks episode on Webb's incredibly detailed view of an actively forming star system.
Space Sparks Episode 18: Highlights from Webb's Third Year of Science
ESA/Webb Space Sparks episode covering highlights from the James Webb Space Telescope's third year of science operations.
Space Sparks Episode 23: A Pair of Planet-Forming Discs
ESA/Webb Space Sparks episode on a pair of planet-forming discs around young stars, imaged by the James Webb Space Telescope.
Space Sparks Episode 16: Herbig-Haro 49/50
ESA/Webb Space Sparks episode on Herbig-Haro 49/50, an outflow from a nearby still-forming star.
Space Sparks Episode 21: A Celebrity Cluster in the Spotlight
ESA/Webb Space Sparks episode putting a well-known star cluster in the spotlight, as imaged by the James Webb Space Telescope.
Webb Sets Out to Study Exoplanets: Space Sparks Episode 9
ESA/Webb Space Sparks episode on how the James Webb Space Telescope studies exoplanet atmospheres.
Space Sparks Episode 6: Webb's First Views of Neptune
ESA/Webb Space Sparks episode on Webb's first views of Neptune and its rings.
Space Sparks Episode 5: Webb Captures a Cosmic Tarantula
ESA/Webb Space Sparks episode on the Tarantula Nebula, a vast star-forming region captured by the James Webb Space Telescope.
NASA Visualization Probes the Doubly Warped World of Binary Black Holes
A NASA visualization of two orbiting supermassive black holes, showing how their extreme gravity distorts light from each other.