Another proposal is a technology called the Variable Specific Impulse Magnetoplasma Rocket (or VASIMR). This is an electromagnetic thruster which uses radio waves to ionize and heat a propellant. This creates an ionized gas called plasma which can be magnetically thrust out the back of the spacecraft at high velocities. Former astronaut Franklin Chang-Diaz is pioneering the development of this technology, and a prototype is expected to be installed on the International Space Station to help it maintain its altitude above Earth. In a mission to Mars, a VASIMR rocket could reduce the travel time down to 5 months.
Builders will also install baseboards and casings. By the end of this week, the frames of your windows and doors will be finished. If your new home will have wood moldings, this is the week they’ll be installed. You’ll see many of the details you’ve envisioned start to take form this week, builders will be at work on your floors and trim. They’ll lay tile in kitchens and bathrooms. Hard tiles won’t be damaged by builders moving appliances and fixtures in, but carpets and softer wood floors won’t be installed for a few more weeks.