Latest about Solar System
Over 350 asteroids have hidden moons, Gaia space telescope finds
The European Space Agency's Gaia space telescope has found evidence of more than 350 previously unknown moons orbiting asteroids within our solar system.
9-mile-thick layer of solid diamonds may lurk beneath Mercury's surface, study hints
New simulations suggest that a 9-mile-thick layer of solid diamonds may lurk deep below the surface of Mercury. The gems almost certainly can't be mined for bling — but they may help solve some of the planet's biggest mysteries.
Astronomers want to change how we define a planet — again
Astronomers are proposing a new, more quantitative definition of what makes a planet. The new definition looks more directly at the object's mass — but it would still leave Pluto out of the running.
'Dark comets' may be a much bigger threat to Earth than we thought, new study warns
A strange class of space rock known as a "dark comet" has qualities of both asteroids and comets — and the hard-to-spot objects may pose a larger threat to Earth than we thought, according to new research.
What would happen if a black hole wandered into our solar system?
Black holes aren't "cosmic vacuum cleaners," but what would happen if one wandered into our solar system?
How many moons are in the solar system?
The solar system has many more moons than the one we can see in the sky. But how many do we actually know about? And how many more are waiting to be discovered?
'Space potato' spotted by NASA Mars satellite is actually something much cooler
The starchy-looking moon Phobos, destined to crash into Mars' surface, has been revealed in new detail by NASA's Mars Reconnaissance Orbiter. The 'space potato' image was recently shared on NASA's Instagram.
Is Jupiter's Great Red Spot an impostor? Giant storm may not be the original one discovered 350 years ago
Astronomer Giovanni Cassini observed Jupiter's 'Permanent Spot' in 1665, but new research suggests it's a different vortex from today's Great Red Spot.
50 interesting facts about Earth
Reference We've collected some of the most interesting and amazing facts about Earth
8 strange objects that could be hiding in the outer solar system
The outer solar system is a vast and mysterious place that could be harboring hidden objects we know almost nothing about — from the elusive Planet Nine and baby black holes to interstellar visitors and "planet killer" asteroids.
