Featured in asteroids
This speedy space rock is the fastest asteroid in our solar system
The newly discovered asteroid could collide with Mercury or Venus in the future.
The Arecibo Observatory collapsed this week. What now?
Reeling from a damaging astronomical loss, researchers contemplate how to adapt to a new reality.
A new ’Oumuamua theory could mean many more interstellar visitors are headed our way
‘Oumuamua sure looked like an oddball, but similar planetary tatters could be floating everywhere.
Will asteroids wreak havoc on future Mars settlers?
It’s tough enough keeping track of everything that might hit Earth.
Earth has a new mini-moon, but don’t get too attached
Goodbye mini-moon, we hardly knew ye.
Asteroids go to pieces when their host star dies
Dying stars may spin asteroids apart from afar.
Why the definition of a planet is always changing
The debate didn’t start or end with Pluto.
‘Oumuamua isn’t aliens, but it may not be an asteroid either
A new analysis shows the interstellar visitor might not be what we thought.
This spherical asteroid might be our solar system’s tiniest dwarf planet
It could join the ranks of Pluto and four others in our celestial neighborhood.
Saturn now has 82 known moons—so why did we only get one?
Scientists may have an explanation for the absurd abundance.