Four veteran astronauts will launch to the International Space Station on Thursday (April 22) for SpaceX’s Crew-2 mission, the second operational commercial crew flight of SpaceX’s Crew Dragon spacecraft.

The mission is set to blast off on April 22 from Pad 39A at NASA’s Kennedy Space Center in Florida at 6:11 a.m. EDT (1011 GMT). And, if all goes as planned, Crew Dragon will dock with the orbital outpost less than 24 hours later.

Blue Origin launched an uncrewed test flight of its New Shepard suborbital vehicle on April 14, 2021 from their West Texas facility. The capsule and rocket both landed several minutes after launch. The private spaceflight company complete an ‘astronaut rehearsal’ prior to the flight with future crew members boarding the capsule temporarily. Full Story: https://www.space.com/blue-origin-new-shepard-ns-15-launch-landing-success.

Credit: Blue Origin

Circa 2013 o.o

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We may still have a long way to go before we get a warp drive, but we may not have to wait much longer for our very own Star Trek-style phasers.

Scientists at NTT Basic Research Laboratories in Japan have managed to build the world’s first phaser, which is essentially a laser-like emission that works with sound instead of light. Like a laser, but not a laser. Aka a phonon laser. Basically: a phaser.

The technology essentially is able to emit a force via sound waves without the use of a laser, which is a major scientific feat. Scientists working on the project say the leap will make it “much easier to integrate into other applications and devices.”

The Department of Defense’s research and development agency awarded contracts to three companies to build a nuclear spacecraft by 2025.

https://youtu.be/AZeWPlVoLko

Permanent magnetic motors circa 2014.

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The AZ-PM thruster is the latest in a range of Rolls-Royce propulsion products using its permanent magnet technology. This technology is based on electric drive where the motor is in the form of a ring round the propeller. The moving part of the ring is a rim around the propeller blades which carries a series of strong permanent magnets. The rotor, fitted within a series of magnets, turns within an outer ring which form the stator.

When current is supplied to the motor from the variable frequency power supply the electromagnets are excited in a particular sequence and the resulting magnetic fields interact with the field from the rotor magnets creating a torque that turns the rotor and its propeller blades.

At the centre of the thruster the propeller blades are joined to a hub, which has two functions; to carry the bearings taking propeller thrust and provide radial location of the rotor, and to improve the hydro-dynamic efficiency of the thruster. Loads are transferred to the stator through struts. Both rotor and stator are sealed against water ingress and operate fully submerged.

Rolls-Royce PM technology is flexible, and is currently applied in this integrated propeller drive form to tunnel thrusters (TT-PM) and azimuth thrusters (AZ-PM). Other versions in which the PM rotor is arranged to turn an output shaft provide a high torque, low speed, drive for winches.

Several hundred people have already booked their tickets and begun training for a spectacular voyage: a few minutes, or perhaps days, in the weightlessness of space.

The mainly wealthy first-time space travellers are getting ready to take part in one of several private missions which are preparing to launch.

The era of space tourism is on the horizon 60 years after Soviet cosmonaut Yuri Gagarin became the first person in space.