SpaceX launched its Falcon Heavy rocket Tuesday, making history by sending the largest rocket into space since 1975. CEO Elon Musk tweeting in response to President Trump, "An exciting future lies ahead." Mashable's Deputy Science Editor Miriam Kramer explains what the scene was like on the ground at Cape Canaveral, FL.

"It definitely felt like a historic moment," said Kramer. "It was pretty incredible to see this giant thing fly into space."

Aboard the rocket was Musk's original Tesla roadster. On whether this was as PR stunt, Kramer says it added pizzazz. She said just because it was a publicity stunt doesn't mean it's bad. "I think the Tesla is really fun, and space needs to be a little more fun," said Kramer.