This story was updated at 7:41 p.m. EDT. HOUSTON — As NASA winds down its space shuttle program, the agency is navigating a tricky transition that will not only ground the orbiter fleet for good, but ...
With Russian and Ukrainian delegations in Riyadh in late March, diplomatic efforts to end the conflict in Ukraine entered a new stage. The two sides, however, are not meeting in person. Instead, in an ...
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