Cosmic Cove Galaxy

Cosmic Cove Galaxy is the third accessible galaxy in World 2 alongside Wild Glide Galaxy and Honeybloom Galaxy if you feed the Hungry Luma

Cosmic Cove Galaxy is the mainstay water level where you freeze a waterfall and navigate through moving water chunks.

Normal Stars

The green stars here are typically done in the order 1, 2, 3. Click here for more info on green star routing.

Cosmic Cove 2 triggers a Starship Event which moves Mario to the bottom of the Starship and spawns the Penguin.

List of Galaxies in Super Mario Galaxy 2
World 1	Sky Station Galaxy ~ Yoshi Star Galaxy ~ Spin-Dig Galaxy ~ Fluffy Bluff Galaxy ~ Flip-Swap Galaxy ~ Rightside Down Galaxy ~ Bowser Jr.'s Fiery Flotilla
World 2	Puzzle Plank Galaxy ~ Hightail Falls Galaxy ~ Boulder Bowl Galaxy ~ Cosmic Cove Galaxy ~ Wild Glide Galaxy ~ Honeybloom Galaxy ~ Bowser's Lava Lair
World 3	Tall Trunk Galaxy ~ Cloudy Court Galaxy ~ Haunty Halls Galaxy ~ Freezy Flake Galaxy ~ Rolling Masterpiece Galaxy ~ Beat Block Galaxy ~ Bowser Jr.'s Fearsome Fleet
World 4	Supermassive Galaxy ~ Flipsville Galaxy ~ Starshine Beach Galaxy ~ Chompworks Galaxy ~ Sweet Mystery Galaxy ~ Honeyhop Galaxy ~ Bowser's Gravity Gauntlet
World 5	Space Storm Galaxy ~ Slipsand Galaxy ~ Shiverburn Galaxy ~ Boo Moon Galaxy ~ Upside Dizzy Galaxy ~ Fleet Glide Galaxy ~ Bowser Jr.'s Boom Bunker
World 6	Melty Monster Galaxy ~ Clockwork Ruins Galaxy ~ Throwback Galaxy ~ Battle Belt Galaxy ~ Flash Black Galaxy ~ Slimy Spring Galaxy ~ Bowser's Galaxy Generator
World S	Mario Squared Galaxy ~ Rolling Coaster Galaxy ~ Twisty Trials Galaxy ~ Stone Cyclone Galaxy ~ Boss Blitz Galaxy ~ Flip-Out Galaxy ~ Grandmaster Galaxy