Suborbital vehicles don't orbit Earth.
Musk notes that making it into orbit requires going eight times faster and producing 65 times more rocket energy than
a suborbital vehicle like SpaceShipOne.
NASA has a long history of launching them, and Virgin Galactic — Richard Branson's aerospace company — is now building and testing
a suborbital vehicle called SpaceShipTwo.
The suborbital vehicle was lofted up to an altitude of nearly 14 kilometres by a carrier plane called WhiteKnightTwo, before gliding back down to Earth.
Not exact matches
XCOR is pursuing the latter paradigm with its winged rocket - powered Lynx, a reusable space
vehicle that will take off from a conventional runway and blast into
suborbital space (roughly 330,000 feet, or 63 miles) powered by an onboard rocket motor before flying back to Earth and landing on a conventional runway.
Private spaceflight company Blue Origin is eyeing crewed test flights of its reusable
suborbital space
vehicle starting next year.
The Kent, Washington - based Blue Origin is currently developing a
vehicle called New Shepard that is designed to take passengers on short
suborbital trips so they can experience the thrill of weightlessness and see the blackness of space without the filter of Earth's atmosphere.
And North Korea has also been working on a re-entry
vehicle, which would protect the warhead during the ICBM's return to Earth's atmosphere from
suborbital space.
There are a number of companies trying to build commercial
suborbital spacecraft, but the current leader is Virgin Galactic, which will use a
vehicle built by Burt Rutan, the designer of the Ansari X Prize — winning SpaceShipOne, the only private manned spacecraft thus far to have left the atmosphere.
Blue Origin, an aerospace company based in Kent, Washington, and led by Amazon.com founder Jeff Bezos, is working on a rocket - propelled
vehicle called New Shepard to carry people and microgravity experiments on
suborbital trips into space.
(
Suborbital means the
vehicle can fly only to a lower altitude than is necessary to start orbiting the Earth — it would have to travel higher, and faster, to reach altitudes achieved by orbiting satellites or the International Space Station, for example.)
Blue Origin intends to use the New Shepard
vehicle for
suborbital space tourism and as a microgravity science laboratory.
Two commercial
suborbital launches scheduled for late last week, one a test flight of an orbital launch
vehicle and the other of a
suborbital research
vehicle, have been postponed.
SpacePolicyOnline.com published an article summarizing the hearing, including the release of a report by the Tauri Group that forecasts a robust market for
suborbital reusable launch
vehicles (SRVs), that day.
NASA's Wallops Flight Facility (WFF), in Wallops Island, Virginia, leads technical and scientific reviews for the 47 teams planning to fly on
suborbital and orbital
vehicle platforms, such as CubeSats, aircraft, sounding rockets, and balloons.