Story highlights SpaceX founder Elon Musk: "Rocket landed on droneship, but too hard for survival"

This was the second attempt at historic rocket booster barge landing

Dragon spacecraft will head toward International Space Station on resupply mission

(CNN) SpaceX on Tuesday launched a two-stage Falcon 9 rocket carrying an uncrewed cargo spacecraft called Dragon on a flight from Cape Canaveral, Florida, to the International Space Station.

That was the easy part. In a difficult bid to land a rocket stage on a floating barge for the first time, the private space exploration company was unsuccessful.

SpaceX founder Elon Musk tweeted: "Ascent successful. Dragon enroute to Space Station. Rocket landed on droneship, but too hard for survival."

Ascent successful. Dragon enroute to Space Station. Rocket landed on droneship, but too hard for survival. — Elon Musk (@elonmusk) April 14, 2015

He later clarified that the rocket landed, but tipped over.

Looks like Falcon landed fine, but excess lateral velocity caused it to tip over post landing pic.twitter.com/eJWzN6KSJa — Elon Musk (@elonmusk) April 14, 2015

SpaceX tried to land a Falcon 9 on the drone ship in January, but the rocket hit at an angle and exploded. SpaceX has said it will keep trying and, after it masters landing at sea, hopes to someday land rockets on the ground.

Falcon 9 first stage landing burn and touchdown on Just Read the Instructions https://t.co/4Te0BfT2Qn — SpaceX (@SpaceX) April 15, 2015