THE SKYHOOD ACADEMY
Follow your curiosity
Understand a little more each time you look up. Twenty complete lessons, practical activities and knowledge checks.
First light
Start with the sky you can see.
The cosmic journey
Explore the physics behind the wonder.
A deeper universe
Ask the questions that shape research.
Black holes without the myths
Understand event horizons and the evidence for objects that emit no escaping light.
Start learning02Intermediate · 10 MINChoose and understand a telescope
Learn why aperture, stability, and field of view matter more than an impressive magnification claim.
Start learning03Advanced · 10 MINDark matter and dark energy
Separate two different scientific questions that happen to share the word dark.
Start learning04Advanced · 10 MINFrom measurements to a scientific result
Build a reproducible analysis and keep uncertainty attached to every claim.
Start learning05Intermediate · 10 MINGalaxies, nebulae, and cosmic neighborhoods
Distinguish glowing clouds within galaxies from the galaxies that contain them.
Start learning06Beginner · 8 MINGetting a feel for cosmic distances
Use light-travel time and scale models to make very large distances understandable.
Start learning07Advanced · 10 MINHow spacecraft study other worlds
Choose instruments and mission types that answer a specific scientific question.
Start learning08Intermediate · 10 MINHow stars are born, live, and die
Follow the balance of gravity and pressure that shapes a star’s lifetime.
Start learning09Intermediate · 10 MINHow we discover planets around other stars
Read the tiny signals that reveal exoplanets and understand what they cannot yet prove.
Start learning10Advanced · 10 MINHow we study an expanding universe
Connect expansion, the cosmic microwave background and the evidence for cosmic history.
Start learning11Beginner · 8 MINMeet our solar system
Understand the Sun’s planetary family and the clues it preserves about formation.
Start learning12Intermediate · 10 MINOrbits are continuous free fall
Connect sideways motion, gravity, and Kepler’s laws without turning an orbit into a fixed rail.
Start learning13Intermediate · 10 MINPlan an observing session that teaches you something
Choose targets, account for conditions, and keep a record you can compare later.
Start learning14Beginner · 8 MINRead the Moon’s changing face
Explain phases, distinguish them from eclipses, and choose a useful night to observe.
Start learning15Intermediate · 10 MINRead the universe through light
Use spectra to connect distant light with temperature, composition, and motion.
Start learning16Advanced · 10 MINRelativity for skywatchers
Understand why clocks, light and gravity belong in the same astronomical conversation.
Start learning17Beginner · 8 MINStars, constellations, and your sky map
Learn how a three-dimensional universe becomes a useful map of directions.
Start learning18Advanced · 10 MINThe physics inside a star
Connect pressure, temperature, nuclear reactions and stellar light.
Start learning19Beginner · 8 MINWhy the seasons change
Connect Earth’s tilt to daylight, solar height, and changing observing opportunities.
Start learning20Beginner · 8 MINYour first night as an astronomer
Learn to turn curiosity about the sky into observations you can check.
Start learningA different way to learn.
Test your knowledge or find a term that’s new to you.