a doctorinmay
Mars is the planet that is most studied besides Earth. Scientists have been sending spacecraft to orbit, land, and rove on Mars for decades, gathering valuable data on its geology, climate, and potential for hosting life.
Voyager 2
In our solar system, earth. God put earth right where its not too hot or too cold. Humans are very fragile when it comes to temperature. All the others are either too cold or too hot. Also earth is the only one that we know of that has an atmosphere in which we can breath.
The gravitational pull between earth and the spacecraft will become insignificant.
A spacecraft that is controlled from Earth is typically referred to as a teleoperated spacecraft. This means that it is being controlled by operators on Earth rather than operating autonomously.
As of 2021, spacecraft have studied five comets up close: Halley's Comet (by the European Space Agency's Giotto spacecraft), Comet Borrelly (by NASA's Deep Space 1), Comet Wild 2 (by NASA's Stardust spacecraft), Comet Tempel 1 (by NASA's Deep Impact spacecraft), and Comet 67P/Churyumov-Gerasimenko (by the European Space Agency's Rosetta spacecraft).
No spacecraft from Earth has ever landed on Neptune.
the Friendship 7 spacecraft
No spacecraft has ever landed on Mercury, but it was studied by Mariner 10 and MESSENGER.
No.
A spacecraft launch refers to the process of sending a spacecraft into space from Earth. It involves the ignition of the rocket engines to propel the spacecraft out of Earth's atmosphere and into its designated orbit. Launches can be conducted by government space agencies or private companies.
It takes 3-4 days to get to the moon from Earth by spacecraft