Funeral costs include basic services fee for the funeral director and staff, charges for other services and merchandise, and cash advances. Make copies of the checklist at the end of this article. Use it when you shop with several funeral homes to compare costs.
2. A device or agent used to detect or explore a substance (for example, a molecule used to detect the presence of a specific fragment of DNA or RNA or of a specific bacterial colony). 3. To enter and explore, as with a probe.
Artist's concept of Mariner 9, the first probe to orbit Mars. Image credit: NASA We received this question from fourth-grade students in Fresno, California. JPL's Homework Help page provides basic information and suggestions for further research. A probe is a spacecraft that travels through space to collect science information. Probes do not have astronauts. Probes send data back to Earth for scientists to study. The First Probes Sputnik 1 was the first probe to go into space. It was launched on Oct. 4, 1957, by the former Soviet Union. On Jan. 31, 1958, the United States sent a probe called Explorer 1 into space. These first probes studied Earth from space. They also learned what it's like to be in space. This was the beginning of the Space Race between the United States and Soviet Union.