Doppler shift tells the distance form the earth station
age
Mainly astronomers. But cosmologists and astrophysicists will also be interested in outer space.
As astronaut travels into outer space and some have been killed doing so. Most astronomers stay on the planet Earth and look up into space. There have been astronauts who are astronomers, but, most astronomers are not astronauts. There have been tens of millions of astronomers looking up at outer space, but, only a few hundred astronauts. No, they are not the same.
Astronomers
gravity
astronomers!!!!! There are many different fields withing research into space all with specific names and job roles. Some include: Cosmologists Astronomers Plantologists "Space Scientist" Various engineering roles connected with space missions just to name a few :/
Astronomers.
Astronomers.
astronomers
space research centre
astronomers
A Telescope
Mainly astronomers. But cosmologists and astrophysicists will also be interested in outer space.
astronomers collect data by diverse technical equipment: - by space probes -by telescopes -by satellites -and by other technical equipment In general they often also use radiometry/radiation and take pictures of astronomic objects, sometimes they also land on some objects and take samples, sometimes also by meteorites (that strike on earth).
a space shuttle.
Astronomers are constantly investigating and collecting information on any objects in space that have not yet been cataloged. In the course of doing this, they find and identify galaxies, nebulae, novas and, of course, black holes. They just "turn up" frequently as part of the never-ending search of the universe and the objects in it.
Weight is due to gravitational forces between two objects. A single object inspace without another one reasonably nearby, or even in gravitational free-falltoward another object, is weightless. So you can not weigh an object in space.Determining the mass of objects in space is another matter.
Objects moving toward you will have a blue shift in their spectrum and objects moving away from you will have a red shift in their spectrum. This is known as a doppler shift.