Watch replays of the Orion inflight abort test

SpaceX’s upgraded Dragon capsules will not return astronauts to Earth for powered landings as originally envisioned, company boss Elon Musk said Wednesday, a design change that raises questions about the space transport firm’s plans to send commercial landers to the surface of Mars.

Riding a Japanese rocket, the Arab world’s first interplanetary probe departed planet Earth on Sunday to begin a seven-month journey to Mars on a dual mission of scientific exploration and proving the mettle of the UAE’s growing space program.

On the cusp of the company’s next Cygnus resupply flight to the International Space Station set for launch Thursday night from Virginia, Northrop Grumman officials said they are eager for NASA to approve more Cygnus cargo missions beyond those already on contract through 2022.