Does Earth's Atmosphere Really Extend Beyond the Moon?
Yes. Earth’s atmosphere really does extend beyond the Moon, if we include its extraordinarily thin…
What If Earth Passed Through a Dense Cloud of Interstellar Dust?
What if Earth entered a dense cloud of interstellar dust? The greatest concern would probably not …
Why Are There No Green Stars in the Night Sky? A New White Dwarf Exception
Look into a dark sky and you can find reddish stars, icy blue-white stars, and many that seem almo…
What If Earth's Magnetic Field Vanished for 24 Hours?
If Earth's magnetic field vanished for exactly 24 hours, people at ground level would not sudd…
How Did Mark Watney Make Water on Mars in The Martian — and Would It Really Work?
In The Martian , stranded astronaut Mark Watney makes water by obtaining hydrogen from leftover hy…
Why Does Neptune Have the Fastest Winds in the Solar System?
Neptune has the fastest measured winds of any planet in our solar system, with cloud motions reach…
What Would Happen If the Sun Suddenly Became 10% Hotter?
What if the Sun suddenly became 10% hotter tomorrow? Earth would not burst into flames, but the ex…
OlderNewest