Stars | Planets

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The Space Memory Match Game screen displays one move made, zero matches, and a timer at 4:31. Choose your challenge: Easy (12 cards) or Hard (20 cards), with all cards face down in this Free Memory Game adventure.
Universe AppsGames

Free Space Memory Match Game

Feb 19, 20260 comments5 min read
A person gazes up at a star-filled night sky, captivated by the question "How many stars in our galaxy?" shining boldly in yellow letters.
Stars | Planets

How many stars in our galaxy? The Milky Way’s…

Sep 1, 2025 0 6 min read
Illustration showing two nuclear bomb explosions, one over Earth and one in space, with the text “What happens if a nuclear bomb explodes in space?” in bold yellow letters.
Stars | Planets

What happens if a nuclear bomb explodes in space?

Aug 27, 2025 0 7 min read
Yellow text reads "Smallest planet ever discovered outside the solar system" over an illustration of the smallest planet seen near a large bright star.
Stars | Planets

Smallest Planet Ever Discovered Outside the Solar System

Aug 19, 2025 0 5 min read
A graphic showing planets orbiting a star with text: "Smallest planet ever discovered outside the Solar System.
Stars | Planets

Smallest Planet Ever Discovered Outside the Solar System: Kepler-37b…

Aug 17, 2025 0 7 min read
At sunset, a person peers through a telescope as bold yellow text asks, "What is the Smallest Planet in our solar system?.
Stars | Planets

What Is the Smallest Planet in Our Solar System?…

Aug 15, 2025 0 5 min read
Text graphic with a backdrop of outer space reads: "Galaxies in the Hercules–Corona Borealis Great Wall," highlighting this immense cosmic structure, with a small "The Universe Episodes" logo above.
Stars | Planets

How Many Galaxies Are Inside the Hercules–Corona Borealis Great…

Aug 14, 2025 0 6 min read
Star map with labeled Hercules and Corona Borealis constellations, featuring the text "Discovering the Hercules–Corona Borealis Great Wall." Explore the cosmic structure that inspired its name.
Stars | Planets

How Did Astronomers Discover the Hercules–Corona Borealis Great Wall?

Aug 13, 2025 0 7 min read
Text over a background of stars and galaxies asks: "Is there anything bigger than the Hercules–Corona Borealis Great Wall?.
Stars | Planets

Is There Anything Bigger Than the Hercules–Corona Borealis Great…

Aug 12, 2025 0 6 min read
A spiral galaxy with stars in the background. Text in bold yellow reads "Hercules–Corona Borealis Great Wall," referencing the massive cosmic structure, with a round logo above it labeled "The Universe Episodes.
Stars | Planets

Hercules–Corona Borealis Great Wall: The Largest Structure in the…

Aug 10, 2025 0 6 min read
Colorful space background with stars and nebula; yellow banner across center reads "Stars look dim in space?" with "The Universe Episodes" logo above.
Stars | Planets

Why are stars dim in space but not from…

Aug 9, 2025 0 9 min read
Text graphic over a space background reads: "WATER IN SPACE: FREEZE OR EVAPORATE?" with "THE UNIVERSE EPISODES" logo above in a yellow circle.
Stars | Planets

If you poured water into space, would it freeze…

Aug 5, 2025 0 7 min read
Yellow text "What Does Astronomy Mean?" appears over illustrations of a black hole, planets, a star, and asteroids, highlighting the wonders of astronomy. "The Universe Episodes" logo is shown at the top center.
Stars | Planets

What Does Astronomy Mean?

Aug 4, 2025 0 7 min read
A planet is silhouetted in front of a bright, fiery sun with text asking, “From which planet can we have a better view of the sun?”.
Stars | Planets

From Which Planet Can We Have a Better View…

Jul 18, 2025 0 8 min read
A starry night sky above a dark forest with the text: "Why is the night sky dark? Discover the secrets of our universe!.
Stars | Planets

Why is the Night Sky Dark?

Jul 13, 2025 0 6 min read
Two satellites and the International Space Station orbit above Earth; text asks why they don't freeze in space and highlights the importance of space thermal control in handling extreme temperatures.
Stars | Planets

If Space Is Freezing, Then Why Don’t Satellites or…

Jun 26, 2025 0 6 min read
A spiral galaxy with glowing stars and cosmic clouds, overlaid with the text "Exploring the Wonders of the Milky Way.
Stars | Planets

Exploring the Milky Way Galaxy

Jun 12, 2025 0 5 min read
A digital illustration of a video player with a cosmic background, labeled "Exploring the Universe's Mysteries," and text reading "WHY CAN'T WE SEE PAST the cosmological horizon.
Stars | Planets

Why can’t we see past the cosmological horizon?

Jun 4, 2025 0 7 min read
A digital image with a starry sky background, constellation lines, and the text “What is Astronomy?” beneath a circular logo reading “The Universe Episodes,” capturing the wonder of exploring astronomy.
Stars | Planets

What is astronomy?

May 30, 2025 0 8 min read
Illustration of a planet with rings in space, surrounded by clouds and stars, with the text "NASA Voyager 1's Stunning Discoveries – Exploring beyond our solar system.
Stars | Planets

Voyager 1 Space Discoveries | What NASA Found Beyond…

May 26, 2025 0 5 min read
Illustration of a smiling Earth surrounded by apples and planets in space, with the text "What is Earth's gravitational force?" and "Explore the science of gravity on Earth today.
Stars | Planets

What is the force of gravity on earth?

May 24, 2025 0 7 min read
A graphic with the text "Is Gravity a Force? A Comprehensive Exploration of Its True Nature" beside an artistic depiction of planets, swirling lines, and the mysterious force of gravity at play in space.
AstronomyStars | Planets

Is Gravity a Force? A Comprehensive Exploration of Its…

May 16, 2025 0 9 min read
Illustration of a bright spiral galaxy in blue tones with the text "The Cosmological Principle Explained" above it on a red background, highlighting our understanding of the universe and its underlying principles.
Stars | Planets

What is the cosmological principle, and how is it…

May 13, 2025 0 6 min read
A telescope silhouette points at a colorful nebula on a graphic titled "Exploring the Core of Neutron Stars," with the caption "What lies beneath the surface of a Neutron Star?.
Stars | Planets

What Is Hidden In The Core Of A Neutron…

May 11, 2025 0 7 min read
A graphic of a rocket launching into space with the text: "Understanding Suborbital and Orbital Flights. Explore the differences and benefits of each flight type.
Stars | Planets

Suborbital vs. Orbital Flights: Which Space Experience Is Right…

May 8, 2025 0 4 min read