Why Does NASA Observe The Sun In Different Colours?
Youth Astronomy
The Solar Dynamics Observatory, or SDO, sees the Sun in more than 10 distinct wavelengths of light, showing solar material at different temperatures.
Why Is Our Moon Two-Faced?
Adults Astronomy
The near side of the Moon has a thin crust and is covered in maria. The far side has a thick crust and almost no maria.
Solar Eclipse 101
Youth Astronomy
Learn more about how solar eclipses happen, the four types of eclipses, and how to view the sun safely if you're within the path of totality.
Lunar Eclipse 101
Youth Astronomy
Learn what causes a lunar eclipse and how it gains its crimson coloring.
How the James Webb Space Telescope Will Unfold the Universe | John C. Mather | TED
Adults Astronomy
The James Webb Space Telescope is a miracle of modern science and engineering.
The Huge Hexagon-Shaped Storm on Saturn
Youth Astronomy
The sun is slowly rising over Saturn’s north pole, exposing an immense six-sided hurricane.
How To Find A Galaxy
Youth Astronomy
Knowing the addresses of a thousand galaxies yielded a remarkable picture of our universe.
The Largest Known Star
Youth Astronomy
What is the largest star in the Universe? And why is it that large? And what ARE stars anyway?
Stars For Kids
Kids Astronomy
On a dark clear night, you can see a sky full of stars. But what is a star?
What's The Difference Between Asteroids, Comets, And Meteors?
Youth Astronomy
Asteroids, comets, and meteors: what's the difference?
How Saturn Got Its Rings
Youth Astronomy
There's evidence to suggest Saturn didn't have its rings when the dinosaurs inhabited Earth, so how did they form?
The Last Star
Youth Astronomy
The last star in the universe will be a red dwarf.
The Colours Of Stars
Kids Astronomy
Sam the Bat noticed that some stars are different colors, so Mister Brown teaches him about what colors stars can be, and what all the colors mean!
Does Planet 9 Exist?
Adults Astronomy
A planet has been predicted to orbit the sun with a period of 10,000 years, a mass 5x that of Earth on a highly elliptical and inclined orbit.
We're STILL Not Saying It's Aliens, But Tabby's Star Is Getting Weirder
Adults Astronomy
The light from KIC 8462852 faded again, and scientists have some new theories about what's behind astronomy's most mysterious star.
Decoding the ancient astronomy of Stonehenge
Adults Astronomy
The solstice alignments of Stonehenge, explained.
How to SEE or HEAR the Big Bang
Adults Astronomy
So you know a bit about the Big Bang - but did you know that you can physically see or hear it in your every day life? Find out how 'static' often contains remnants from this monumental event.
The beginning of the universe, for beginners
Adults Astronomy
How did the universe begin -- and how is it expanding? CERN physicist Tom Whyntie shows how cosmologists and particle physicists explore these questions by replicating the heat, energy, and activity of the first few seconds of our universe, from right after the Big Bang.
What Color is the Universe?
Adults Astronomy
When you stare up at the night sky, you might think that the universe is really black, but that's just because our eyes aren't sensitive enough to see the billions and billions of multicolored stars out there. Ever wonder why certain stars are certain colors? And what color is our sun, really? If we looked at enough stars, could we figure out the average color of the universe?
How Many Stars Are There?
Adults Astronomy
Counting stars from the shore of the cosmic ocean...
Could We Stop An Asteroid? Feat. Bill Nye
Adults Astronomy
Could we stop an asteroid on a collision course for Earth?