Meteors

Meteors are a notoriously hazardous weather. Huge rocks will fall from the sky, dealing 1000 damage to both player and blocks.

Only some planets/biomes can have meteors. You can use GPS feature of your Personal Tricorder to determine possible weathers on the planet you are currently on.

Extreme caution is advised when building on planets with Meteors. If not protected by a Field Generator, player-constructed buildings can be seriously damaged. No block except Dead Core can survive being hit by 1000 damage from a Meteor (the strongest craftable block in the game, Diamond Block, has 84 hitpoints).

This weather has a variation called "Large Meteor", which ends more quickly, but causes an even larger impact area.