Elon Musk’s aerospace manufacturer company, SpaceX all set to launch a refrigerator-sized satellite to orbit on April 18, Wednesday, where it will hunt for another earth. TESS is the first NASA spacecraft that SpaceX will launch that is designed to peer deep into the cosmos.

The launch of the satellite was set for Monday evening Eastern time from Space Launch Complex 40 at Cape Canaveral Air Force Station. But two hours before the planned launch, the company announced that the take-off has been postponed to Wednesday to make time for more guidance, navigation and control analysis.

TESS will dispatch on a SpaceX Falcon 9 rocket from the company’s Cape Canaveral Air Force Station in Florida. NASA stated that spacecraft will fly in a unique orbit that will allow it to study nearly the entire sky over two years. This move will find thousands of new planets outside the solar system known as exoplanets, including those that could support life.

SpaceX stated that TESS will be launched into elliptical orbit approximately 48 minutes after launch. NASA TV is broadcasting TESS-related content up until the launch, even SpaceX also broadcasting the launch.

TESS is the successor of NASA’s Kepler Space Telescope and it is designed to scan the sky for exoplanets within 300 light-years of Earth. After the launch of the satellite, there will be a two-month testing before the real data starts flowing back to Earth from TESS. Meanwhile, SpaceX will stay busy with some important launches like the debut of its “Block 5” Falcon 9 rocket.