Cape Canaveral, Fla. ? For the second day in a row Tuesday, stormy weather prevented the returning crewmen of the international space station from being reunited with their families after a separation of 6 1/2 months. The three crewmen who are coming home aboard Endeavour NASA astronauts Carl Walz and Daniel Bursch and Russian cosmonaut Yuri Onufrienko logged their 195th day in orbit Tuesday, the longest spaceflight ever for Americans.

Endeavour has enough fuel and supplies to stay in orbit until Thursday, although NASA plans to bring the shuttle down today at either Cape Canaveral or the backup landing site in California’s Mojave Desert.

But a problem was brewing in orbit because of all the homecoming delays: The seven astronauts and cosmonauts were running short on coffee.