Tuesday May 22, 2018
Home Uncategorized NASA fires up...

NASA fires up engine to take astronauts to Mars

0
//
21
Republish
Reprint

Washington: As part of its ambitious Space Launch System (SLS), the US space agency has successfully tested an engine that will help propel astronauts on future deep-space missions, including Mars.

Photo Credit: www.ubergizmo.com
Photo Credit: www.ubergizmo.com

The 535-second test of RS-25 rocket engine at NASA’s Stennis Space Center near Bay St. Louis, Mississippi, was aimed to collect engine performance data, the US space agency said in a statement.

An initial 77-tonne SLS configuration will use four RS-25 engines for the core stage, along with two five-segment solid rocket boosters, providing more lift to orbit than any current launch vehicle.

One final test of this RS-25 developmental engine is left and testing of flight engines will begin later this fall.

The core stage for the first SLS and Orion integrated flight will also be tested at Stennis.

That test will involve simultaneous firing of the four RS-25 engines just as during an actual launch.

Powered by four RS-25 engines, the SLS will send the Orion spacecraft into deep space missions.

“The RS-25 engine gives SLS a proven, high performance, affordable main propulsion system for deep space exploration,” NASA said.

It is one of the most experienced large rocket engines in the world, with more than a million seconds of ground test and flight operations time.

When completed, SLS will enable astronauts to begin their journey to explore destinations far into the solar system.
During the joint Senate-NASA presentation in September 2011, it was stated that the SLS programme has a projected development cost of $18 billion through 2017.

It will be divided into $10 billion for the SLS rocket, $6 billion for the Orion Multi-Purpose Crew Vehicle and $2 billion for upgrades to the launch pad and other facilities at the Kennedy Space Center.

(IANS)

Click here for reuse options!
Copyright 2015 NewsGram

Next Story

SpaceX to Launch Twin NASA Water Cycle Tracker Satellites

The satellites are scheduled to launch at 3.47 p.m. EDT from Vandenberg Air Force Base in Central California

0
//
4
SpaceX to Launch Twin NASA Water Cycle Tracker Satellites
SpaceX to Launch Twin NASA Water Cycle Tracker Satellites. Pixabay

On its way to deploy five Iridium Next communications satellites on Tuesday, a SpaceX Falcon 9 rocket will also launch twin NASA satellites that will monitor Earth’s water cycle, marking a unique rideshare arrangement.

The satellites are scheduled to launch at 3.47 p.m. EDT from Vandenberg Air Force Base in Central California. (This corresponds to 1.17 a.m. Wednesday India time), NASA said.

The two Gravity Recovery and Climate Experiment Follow-On mission (GRACE-FO) spacecraft will follow each other in orbit around Earth, separated by about 220 km.

On liftoff, the Falcon 9 first-stage engines will burn for approximately two minutes and 45 seconds before shutting down at main engine cutoff (MECO).

The Falcon 9’s first and second stages will separate seconds later. Then, the second-stage engine will ignite for the first time (SES1) and burn until the vehicle reaches the altitude of the injection orbit, 490 km.

NASA
Representational Image, VOA

While this burn is going on, the payload fairing — the launch vehicle’s nose cone — will separate into two halves like a clamshell and fall away.

When the rocket’s second stage has completed its ascent to the injection orbit altitude, it will pitch down (its nose points down) 30 degrees and roll so that one of the twin GRACE-FO satellites is facing down, toward Earth, and the other is facing up, toward space.

Then the second stage engine will cut off (SECO).

About 10 minutes after liftoff, a separation system on the second stage will deploy the GRACE-FO satellites.

Separation will occur over the Pacific Ocean at about 17.5 degrees North latitude, 122.6 degrees West longitude.

The first opportunity to receive data from the spacecraft will occur at NASA’s tracking station at McMurdo, Antarctica, about 23 minutes after separation, NASA said.

Also Read: A Study by NASA Shows Freshwater Decline in India

After the GRACE-FO satellites are deployed, the Falcon 9 second stage will coast for half an orbit before reigniting its engine (SES2) to take the Iridium Next satellites to a higher orbit for deployment.

GRACE-FO, a collaborative mission of NASA and the German Research Centre for Geosciences (GFZ), continues the work of the original GRACE mission in observing the movement of water and other mass around our planet by tracking the changing pull of gravity very precisely. (IANS)

Next Story