Not on another planet per se. Venus and Mars have volcanoes, but none have been observed to erupt. Volcanic eruptions have been observed on Io, one of the moons of Jupiter.
How was the planet Uranus been observed
All the planets in the galaxy have not yet been observed.
Yes, in the upper atmosphere high winds have been observed.
Mars has been known for thousands of ears that it is different than the stars and was first observed via telescope by Galileo in 1609.
Uranus was discovered by William Herschel in 1781. It had been observed and recorded before that, but Herschel was the first to realise it is a planet beyond Saturn.
Yes, exoplanets have been observed directly through techniques such as imaging and spectroscopy. Direct imaging involves capturing light from the exoplanet itself, while spectroscopy helps determine the planet's composition by analyzing its atmosphere.
There is no object in our Solar System that has been discovered, observed, and given the name 'Struenis'.
Mercury has been observed for thousands of years, as early as the time of the Babylonians, who mentioned it in writing some 3000 years ago. The exact person who first discovered the planet has been lost to time, and is therefore indeterminate.
Apart from Earth, no humans have ever been on another Planet, whether they be Canadian, Irish or Bengali.
Planet X is a hypothetical planet beyond Neptune that has been proposed to exist in the outer reaches of our solar system. It has not been directly observed, but its existence has been theorized to explain anomalies in the orbits of outer planets. Scientists are still searching for evidence of such a planet.
No human has ever set foot on another planet
As of (2011) no planets have been observed that are habitable. Some MIGHT be, but until detailed research is done on the actual conditions, it cannot be said a planet is habitable.