There has never been any evidence that Mercury supports life of any type.
yes there has been
Yes, there have been probes sent to Mercury. Messenger and Mariner 10.
No, mercury is not always contained in a capillary tube. It can be found in devices like thermometers, barometers, and some electrical switches where it is used due to its unique properties, such as being a liquid at room temperature. Mercury can also be found in other forms in devices, such as sealed containers or as a component in some medical instruments.
yes
No. Mercury is a barren planet covered in nothing but rocks and dust.
Mercury has no atmosphere to speak of, and therefore it has no weather.
no. no humans have ever been to any of the other planets.
No natural satellites of the planets Mercury or Venus have ever been discovered.
Mercury has no moons, and no rings have been observed. Either moons or rings may have existed, but this is not considered a likely possibility.
Mariner 10.
I don't think so because NASA didn't plan to send any on mercury because mercury is very near to the sun any if anyone would go near the sun they would burn.