https://qz.com/1188392/spacex-falcon-heavy-a-successful-test-fire-is-a-good-sign-for-elon-musks-tesla-roadsters-trip-to-mars/

Is it finally here? SpaceX’s Falcon Heavy—a large rocket roughly equivalent to three of its Falcon 9 launch vehicles strung together and expected to be the most powerful rocket in operation when it lifts off—has been promised for years.

Today, after weeks of dress rehearsals on their launch pad at Kennedy Space Center, engineers fired the enormous rocket’s engines for twelve seconds, a test known as a static-fire performed ahead of a maiden flight expected in just weeks.