Russia has a bigger surface area than Pluto.
Astronomers once “lost” a moon of Jupiter.
Valles Marineris, a canyon on Mars, would stretch across the entire United States.
There’s an asteroid that’s worth $95.8 trillion.
NASA discovered a reservoir in space that holds the equivalent of 140 trillion times all the water in the world’s oceans.
If we were to look at the sky with a radio telescope tuned to 408 MHz, the sky would appear radically different from what we see in visible light. Instead of seeing point-like stars, we would see distant pulsars, star-forming regions, and supernova remnants would dominate the night sky.
The Kuiper Belt is named for astronomer Gerard Kuiper, who published a scientific paper in 1951 that speculated about objects beyond Pluto.
More than 150 asteroids are known to have moons.
The red giant Betelgeuse in the constellation Orion completes one rotation in 8.4 years.
In 1977, we received a signal from deep space that lasted 72 seconds. It is referred to as “6EQUJ5”. We still don’t know how or where it came from.