0
What else can I help you with?
How long has Mars been in space?
Mars has been in space for as long as any other planet, such as, earth.
How do astronomers determine the chemical compositions of stars?
The answer is long and complicated, and it is too long to place here. You need to read an entire encyclopedia articles on spectroscopy and the chemical composition of intersteller objects. D.A.W.
How long is a revolution?
A revolution is how long a planet takes to orbit the sun.
Is planet short or long vowel?
Short
How long has there been a storm on Jupiter?
The Great Red Spot on Jupiter has been storming for at least 400 years, possibly even longer. It is a massive storm system that is larger than Earth and has been observed by astronomers dating back to the early 17th century.
How long has Saturn been a planet?
Saturn has been viewed by the naked eye since prehistoric times. In the 1600's and 1700's astronomers began to look more closely at Saturn.
How many satlelites left to discover the planet Mercury?
None. The planet had been observed by ancient astronomers by the 14th Century BC - so almost 3,500 years ago. Thus Mercury had been discovered a very long time before the first satellites were even dreamt of.
How long has Mars been a planet?
mars has been a planet for about 4.6 million years.
How long have astronomers been trying to find out what the sun orbits?
For two or three hundred years, astronomers have had a fair idea the the Sun is not the center of the Universe.
How can astronomers infer approximately how long the universe has been expanded?
Astronomers can determine the expansion of the universe by observing the cosmic background radiation, and the red- or blue-shifting of distant objects.
How long does it take for Planet X to make a complete orbit?
Since we never seen Planet X, we don't know for sure. Astronomers are estimating its orbital period to somewhere between 10,000 to 20,000 years.
Why was Ceres first a planet?
Ceres was the first asteroid belt object to be discovered, and astronomers of the time had long speculated that a planet might exist between the orbits of Jupiter and Mars. Later, the discovery of other asteroid belt objects cast doubt on Ceres' status as a planet.
How long has the sea been around for?
Since the planet was made.
How is my mum old?
Because she been on the planet for a long time
How long has the pine trees been on your planet?
5000 years
How long have humans been on the planet?
Modern humans have been around for 200,000 years.
How long has Movie Star Planet been going on?
2 years
