The shuttle took off from Cape Canaveral, Fla., at 7:43 p.m., and a mere six minutes later it emerged from the South-Southeast area of the sky and traveled to the East-Northeast part of the sky.
Students made their way up to the tenth floor of the Science Center for the chance to catch a glimpse of the spacecraft, which appeared as a fast moving, relatively bright, star-like object.
“I had never seen a shuttle launch before and thought it would be an interesting sight,” said Levi H. Dudte ’11, one of many spectators.
For another observer the spectacle reflected her future aspirations.
“I have always wanted to be an astronaut and thought it would be cool to see a rocket launch,” said Diana Suen ’11, another onlooker.
The congregation of students on the roof of the Science Center to watch the launch was organized by STAHR (Student Astronomers at Harvard-Radcliffe), an organization that also trains students on the use of the observatory and gives access to the 10th floor of the Science Center.
According to Daniel A. Handlin ’11, a STAHR member, shuttle launches are only visible from Cambridge once or twice a year.
“You can only see a shuttle launch one minute a year and this was that minute,” Handlin said.
Although there are several shuttle launches a year, they can only be seen when they occur at night.
“Orbital mechanics dictate the launch time,” said Kyle J. Herring, a NASA Spokesman.
According to Herring, the launch time is chosen in order to optimize the use of propellant for the shuttle’s trip to the International Space Station (ISS).
The shuttle mission STS-119 will last 13 days and will bring the last US-designed component to the ISS.
There are seven astronauts aboard STS-119: Lee J. Archambault, Dominic A. Antonelli, Joseph M. Acaba, John L. Phillips, Steve R. Swanson, Richard R. Arnold, and Koichi Wakata.
The mission was originally supposed to launch in mid-February, but was delayed because of problems with the shuttle’s flow valves.
The launch was again delayed from March 11 to yesterday because of a leak in a vent line.
The final component of the ISS will be delivered at the end of 2010 on the space shuttle’s final mission before its expected retirement, according to Herring.