MANILA, Philippines — The Commission on Elections (Comelec) has allowed candidates and their supporters to distribute sample ballots for the midterm elections on May 12, as long as they do not appear ...

However, preserving the sample wasn’t easy. Engineers spent 13 Martian days carefully clearing rock dust from the sample tube using brushes and a specialized “flick maneuver” before achieving a clean ...

Powdered rock collected at the top of the sample tube interfered with the seal. “This happened once before, when there was enough powdered rock at the top of the tube that it interfered with getting a ...

The microbial composition from the stool samples preserved in Norgen’s Stool Nucleic Acid Collection and Preservation Tubes (Cat. 45630, 45660) did not differ significantly to that of controls ...

Mars sample return tube Instead, NASA and their international partners have been working to distribute the cost and complexity of the mission among several different vehicles. In fact, the first ...