Virgin Galactic (NYSE: SPCE). Westport Fuel Systems (NASDAQ: WPRT). Plug Power (NASDAQ: PLUG).
What do a space tourism company, a maker of liquefied natural gas-powered truck engines, and a vertically integrated hydrogen fuel company have in common? Well, the latter two -- Westport and Plug -- are both broadly defined as alternative energy companies, and I suppose you could call Virgin Galactic an "alternative to NASA" space stock.
More importantly today, though, all three of these stocks are soaring on no apparent news. As of 11 a.m. EDT, shares of Virgin Galactic are gaining back 3.8% from last week's losses, Plug is tacking on 3.8% to last week's gains, and Westport is doing best of all -- powering ahead by a cool 10%.