What Would You See If You Fell Into a Black Hole?
A black hole would not look like a giant cosmic drain waiting to swallow you. If you could surviv…
Why Does Mars Have Two Tiny Moons Instead of One Large Moon?
Earth has one enormous, round Moon that dominates the night sky. Mars has something completely di…
Why Doesn’t Olympus Mons Look Like a Mountain If It’s the Tallest in the Solar System?
If you could stand on Mars and travel toward Olympus Mons, you might expect a wall of rock rising…
Why Are the James Webb Space Telescope’s Mirrors Covered in Gold?
The James Webb Space Telescope looks as if someone built the world’s most extravagant honeycomb a…
How Can Mercury Have Ice When It’s So Close to the Sun?
Mercury is the closest planet to the Sun, so finding water ice there sounds almost impossible. Sun…
If the Universe Is Expanding, What Is It Expanding Into?
When a balloon grows, it expands into the air around it. When a ripple spreads, it moves across t…
Can Two Galaxies Pass Through Each Other Without Their Stars Colliding?
Imagine two galaxies, each containing billions of stars, heading straight into one another. It so…
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