J-2X: Back in the saddle again

(PhysOrg.com) -- NASA conducted a successful 500-second test firing of the J-2X rocket engine on Wednesday, Nov. 9, marking another important step in development of an upper stage for the heavy-lift Space Launch System (SLS). ...

(Phys.org)—Two J-2X engines and a power pack, developed for NASA by Pratt & Whitney Rocketdyne, sit side-by-side at John C. Stennis Space Center in Mississippi as work continues on the Space Launch System.

(Phys.org) -- As Olympic athletes converge on London with dreams of winning gold in the 2012 Summer Olympic Games, NASA is also setting records while testing the J-2X powerpack at the Stennis Space Center. ...

(Phys.org) -- The shake, rattle and roar lasted just seven seconds, but the short J-2X test conducted May 16 at NASA's John C. Stennis Space Center in south Mississippi moved the space agency ever closer to ...

(PhysOrg.com) -- NASA conducted a 40-second test of the J-2X rocket engine Sept. 28, the most recent in a series of tests of the next-generation engine selected as part of the Space Launch System architecture ...

(Phys.org) -- NASA engineers conducted a 550-second test of the new J-2X rocket engine at Stennis Space Center in Mississippi on July 13. The J-2X engine will power the upper-stage of a planned two-stage Space ...

Using data gathered by NASA's Lunar Reconnaissance Orbiter (LRO) mission, scientists believe they have solved a mystery from one of the solar system's coldest regions—a permanently shadowed crater on the ...

Differences between Martian meteorites and rocks examined by a NASA rover can be explained if Mars had an oxygen-rich atmosphere 4000 million years ago—well before the rise of atmospheric oxygen on Earth ...

Strapped in an orange suit in his spaceship, Yuri Gagarin smiles as the rockets roar and chirpily tells mission control: "Let's go!"

(Phys.org) —On July 19, 2013, NASA's Cassini spacecraft will be turned to image Saturn and its entire ring system during a total eclipse of the sun, as it has done twice before during its previous 9 years ...

NASA announced Tuesday a Grand Challenge focused on finding all asteroid threats to human populations and knowing what to do about them.

(Phys.org) —As the closest planet to Earth, Venus is a relatively easy object to observe. However, many mysteries remain, not least the super-rotation of Venus' atmosphere, which enables high altitude winds ...