A Quote by Michio Kaku
Most Jupiter-sized planets orbit the mother star in a highly elliptical orbit. This means they will often cross the orbit of any Earth-like planet and fling it into outer space, making life impossible. But our Jupiter travels in a near-perfect circular orbit, preventing a collision with any Earth-like planet, making life possible.
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Pluto's orbit is so elongated that it crosses the orbit of another planet. Now that's... you've got no business doing that if you want to call yourself a planet. Come on, now! There's something especially transgressive about that.
One of the things that's really exciting from my perspective is that Canada is one of the major spacefaring nations. The list of our achievements is profound and significant, and it's not just in robotics, it's also in the life-sciences research experiments that take place on board and other space-science experiments. I'd love to see Canada go from being a major spacefaring nation in low-Earth-orbit missions to those beyond, making sure we're part of those missions to Mars - not just from a technology perspective, but sending humans into beyond-Earth orbit.
When the space shuttle's engines cut off, and you're finally in space, in orbit, weightless... I remember unstrapping from my seat, floating over to the window, and that's when I got my first view of Earth. Just a spectacular view, and a chance to see our planet as a planet.
The moon is not kept in her orbit round the earth, nor the earth in her orbit round the sun, by a force that varies merely in the inverse ratio of the squares of the distances.
Venus and Mars are our next of kin: they are the two most Earth-like planets that we know about. They're the only two other very Earth-like planets in our solar system, meaning they orbit close to the sun; they have rocky surfaces and thin atmospheres.
One orbit, with a radius of 42,000 kilometers, has a period of exactly 24 hours. A body in such an orbit, if its plane coincided with that of the Earth's equator, would revolve with the Earth and would thus be stationary above the same spot on the planet. It would remain fixed in the sky of a whole hemisphere ... [to] provide coverage to half the globe, and for a world service three would be required, though more could be readily utilized. (1945) [Predidicting geosynchronous communication satellites]
I'm always looking to find order within the chaos. And sometimes when my life gets fairly chaotic, I'll take a walk outside. I think about the order and the perfection of galaxies of planets in orbit and traveling around space and thinking how chaotic the wars and divorces and riots on our planet must look from outer space.
I can't honestly account for the very personal response that I have to one story and not another, a sense of an orbit, the orbit of a world that draws me as my own life recedes.
Changing the asteroid's velocity changes the time when the asteroid crosses Earth's orbit. After all, just because it crosses Earth's path doesn't mean there is necessarily going to be a collision. It has to cross Earth's path when the Earth is right there.
Working in TV and navigating success is a tricky thing. It's easier to navigate the hard work of starting out because you just do anything they let you do, but once you get into an orbit, after the thrusters have pushed you into the orbit, now you have to navigate that orbit. There's no choices when you're starting out. You're just like, "Please, let me do anything." But then it turns around and it's like, "We'll let you do anything".
It is fantastic to think that one day we may be able to access fuel, materials and even water in space instead of digging deeper and deeper into our planet for what we need and then dragging it all up into orbit, against Earth's gravity.
On 24 October 1944 Planet Earth was following its orbit about the sun as it has obediently done for nearly five billion years.
I wound up getting offered a job at the NASA Jet Propulsion Laboratory where I invented a power supply mechanism for the Galileo space craft which was in orbit around Jupiter until 2003.
Two tasks at the beginning of your life: to narrow your orbit more and more, and ever and again to check whether you are not in hiding somewhere outside your orbit.
There is a project that's underway called the interplanetary Internet. It's in operation between Earth and Mars. It's operating on the International Space Station. It's part of the spacecraft that's in orbit around the Sun that's rendezvoused with two planets.
The dead spacecraft in orbit have become a permanent fixture around our planet, not unlike the rings of Saturn. They will be the longest-lasting artifacts of human civilization, quietly circling the Earth until the sun turns into a red giant about 5 billion years from now.
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