Orbital ephemera. They consider its position relative to the sun, earth/moon, and other planets. Over a period of days they can determine its orbit, and whether that orbit likely intersects ours.
Because the constant force of gravity is acting on it, and the acceleration of an object is equal to(net force acting on the object) divided by (the object's mass).
Marriot Hotels, international :GP
Marriot Hotels, international :GP
None specifically. There have been several space craft starting with Voyager 1 that have observed the Jupiter system including Europa, but none have landed there. I am unaware of any planned landers there; this will be very difficult to arrange, because we want to ensure that we do not inadvertently contaminate Europa, which may hold the best chance of finding some form of extraterrestrial life. It is difficult to TOTALLY sterilize anything that has come from the surface of the Earth, a planet which is teeming with the most astonishing forms of life.
Yes, we get in a muddle and all have a cuddle.
There is supposed to be one happening soon. The shift will happen slowly and will leave most the earth unprotected, or so scientists say.
It is not defined yet. But scientists must be trying hard enough to find it out soon.
It won't; a moving object has the object to continue moving. If one day the Moon mysteriously and suddenly stopped moving around Earth, it would fall upon the Earth pretty soon (in a few days), due to Earth's gravity.
There are currently astronauts or scientists living in the International Space Station. They do their scientific works out there and also install, repair, or remove parts if need be.
In principle, yes; but please note that:* There is no such thing as an "absolute velocity". You need to specify that it has zero velocity with respect to some other object. In other words, that it should move at the same velocity as that other object. As Earth, for example.* An object won't stay at such a relative velocity of zero for long. Forces, and mainly gravitational forces, will soon change its velocity. For instance, if you have a spacecraft that is in orbit around Earth, and you make it halt, it will fall straight down. (In this case, it is precisely its speed that keeps it in orbit.)
As soon as "space" was formed, time began.
yes they do
They will say as soon as they know.
Part of the radiation is immediately radiated back into space. The remainder is absorbed; most of what is absorbed will be radiated back into space soon (as the materials heat up, they radiate out more infrared radiation).
Satellites help scientists learn more about the Earth. NASA sends probes out to space. A new program in NASA will try to work on ways to make air travel better for everyone on Earth. BY: Natalie Burnau Grade: 4th Age: soon to be 10
Earth's moon is believed to have formed when Earth collided with a Mars-sized planetoid soon after it formed. Debris from the collision formed a ring around Earth and coalesced into the moon. Scientists still disagree about the origins of Mars' moons Phobos and Deimos. The most prevalent hypothesis is that they are captured asteroids.
Scientists will jump right on it, as soon as credible evidence comes to light that it is worth studying.