How do spacecraft navigate in space ?

How do spacecraft navigate in space ?

paulshillito Rockets, Science, space 0 Comments

How does a space probe like Voyager 2, which was launched in 1977, visit the 4 outer planets and travel over 17 billion kilometres over 40 years with almost next to nothing in the way of fuel. By the time Voyager 2 had reached Neptune, it had swung by Jupiter, Saturn and Uranus, travelled 7 billion kilometres and was still within 100km of it’s target and all with mid 1970’s technology. In the movies space craft just seem to fly to where ever they want and get there in no time at all but in our version of reality its …

The TV camera's Apollo left on the Moon

The TV camera’s Apollo left on the Moon

Admin Science, space 0 Comments

This is the Apollo 17 Lunar Module, and the moment when Gene Cernan and Harrison Schmitt, the last men to stand on the Moon’s surface left to return to earth… but if no one else is there, who’s operating the camera as it pans up and follows the ascent module? The view is actually from a video camera mounted on the Lunar Rover, which remains on the moon to this day. Remotely operated by ground control via the large high gain antenna on the rover itself, the shot was meticulously planned, and timed to account for the 1.2-second delay in …

Secret Soviet Lunar Rovers and Extra Terrestrial Cars

Secret Soviet Lunar Rovers and Extra Terrestrial Cars

Admin Aerospace, Extraterrestrial, space, Technology, Travel 0 Comments

For the last 50 years or so we have been using wheeled robots and vehicles to explore other worlds from secret Soviet lunar rovers to the first lunar car to the latest Mars Rovers, we owe a lot to our extra-terrestrial wheeled helpers. NASA recently released new concept art for ‘the Mars 2020 rover’. The robotic lab is shown in action in its potential landing sites on Mars: currently, three locations are being considered, and a final decision will be made in 2018 or 2019. If the images look like something you’ve seen before, it’s because the new rover is the …

What Happened on the Moon Before Apollo

What Happened on the Moon Before Apollo ?

Admin Rockets, space, Technology 2 Comments

The Apollo landings from 1969 to 1972 marked a high point in lunar exploration but Apollo didn’t just rock up on to the moon out of the blue, it took many, many missions by probes and landers over the preceding years to establish if we could send men to the moon and get them back. It’s quite strange to think that even by the late 1950’s, just over 10 years before Neil Armstrong set foot on the lunar surface we knew surprisingly little about the moon other than what we could observe from the earth and the hypotheses we drew from …

How did the Apollo flight computers get men to the moon and back

How did the Apollo flight computers get men to the moon and back ?

Admin computers, Science, space 2 Comments

There is much speculation by some, as to how the flight computer aboard the Apollo missions managed to get men to the moon when it had just a tiny fraction of the computing power of something like a modern smartphone. But this is quite misleading as there was not one solitary computer controlling the Apollo craft, there were 4 computers and no fancy touch screens, GUI’s or other things in a typical computer of today to waste resources on. The first of the 4 computers was the Saturn Launch Vehicle Digital Computer or LVDC, this got the rocket from the …