VIDEO: First NTSB briefing on Virgin Galactic accident

Even though it doesn’t obey any earthly speed limit and has a space-suited mannequin for a driver, Elon Musk’s Tesla Roadster won’t drive up his insurance rates anytime soon. Researchers say the sports car won’t have a really close encounter with Earth until 2091 and could last millions of years before getting totaled in a planetary crackup.

SpaceX plans to begin construction of a new rocket and spacecraft next year that could lead to human landings on Mars as early as 2024, scaling up technologies currently being perfected with the company’s Falcon 9 family of boosters to ensure reliability, reusability and, as a result, realistically low costs, founder Elon Musk said Friday.

A pioneering Northrop Grumman-built satellite designed to dock with an aging spacecraft more than 22,000 miles above Earth, then extend its life with the aid of solar-electric thrusters, is set for launch Wednesday from Kazakhstan aboard a Proton rocket.