22.2 minutes
We'll take your word for it and use the distance of 400 million km.The speed of radio (and light, heat, UV, X-ray, etc.) is 300,000 km/sec.Time = (400 x 106) / (300 x 103) = 1,333 seconds = 22.2 minutes
The Apollo spacecraft took 3 days to travel from the Earth to the moon.
The farthest man-made object from Earth is Voyager 1 spacecraft, which was launched by NASA in 1977. It has since traveled beyond our solar system and continues to transmit data back to Earth. Hubble Space Telescope is in low Earth orbit and not as far from Earth as Voyager 1.
It takes about 3 days for a spacecraft to travel from Earth to the moon. The exact time can vary depending on the speed and trajectory of the spacecraft.
It takes 3-4 days to get to the moon from Earth by spacecraft
It takes about 3 days (72 hours) for a spacecraft to travel from Earth to the Moon.
The travel time from Earth to Venus varies depending on the alignment of the two planets. On average, it takes about 3 to 4 months for a spacecraft to travel from Earth to Venus.
It takes about 3 days to get to the Moon from the earth.
9 years
Because the North Pole is farthest north on the Earth
As of now, the farthest spacecraft from Earth is Voyager 1. It has reached interstellar space, located about 14 billion miles away from Earth. Voyager 1 was launched by NASA in 1977 and continues to send back data to Earth.
Radio waves can travel indefinitely through space until they dissipate or are absorbed by particles in space. The farthest man-made radio signal, the Voyager 1 spacecraft, has been transmitting radio signals back to Earth from over 14 billion miles away.