jamuna news desk: A rocket load with food and supplies for the astronauts living at the International Space Station is scheduled to blast off Tuesday from a NASA launch pad.
The unmanned Cygnus cargo ship, nestled atop an Atlas V rocket, is poised for taking off during a 30-minute launch window beginning at 11:11 am (1511 GMT) from Cape Canaveral, Florida.
The cargo ship is operated by Orbital ATK and is the company's seventh mission to space as part of a $1.9 billion contract with NASA to ferry supplies to the orbiting outpost.
The spacecraft is loaded with 7,626 pounds (3,459 kilograms) crew supplies, hardware, and experiments on growing food and cancer therapies.
It should arrive at the station on April 22, after the scheduled docking Thursday of a Russian Soyuz spaceship carrying cosmonaut Fyodor Yurchikhin and American astronaut Jack Fischer.
After the astronauts unpack the Cygnus, they will reload it with trash that will burn up along with the spacecraft upon re-entry into Earth's atmosphere.
But before its mission comes to a fiery end, Cygnus will spend a couple of hours running an automated experiment to see how fire acts in microgravity.
Known as Saffire-III, the experiment is the third in a series aimed at igniting a large-scale fire in microgravity.
"While in space, after traveling a safe distance from the station, the fire is lit and data is collected before re-entering the Earth's atmosphere," said a statement from NASA.
"The experiment lasts about two-and-a-half hours, of which 20 minutes is the actual burn off a fabric panel measuring 0.4 meters (yards) wide by one meter long."
The goal is to better understand how fire acts in space in order to safeguard future space missions.