![](https://webarchive.library.unt.edu/eot2008/20090825152000im_/http://astrobiology.nasa.gov/img/_placehold/placehold-ask.jpg)
![Ask an Astrobiologist](https://webarchive.library.unt.edu/eot2008/20090825152000im_/http://astrobiology.nasa.gov/img/text/ask-an-astrobiologist.gif)
"As the earth loses mass because of burning fossil fuel, has the earth moved closer to the sun? "
Special Note
Ask an Astrobiologist has received nearly a thousand questions about Nibiru and 2012, with more than 200 answers posted. Please read a summary of the answers that have already been posted, use the search feature and read the FAQ’s before submitting questions on these topics.
-
Question
Does water exist on other planets?
Water, a simple chemical compound of two of the most abundant elements (hydrogen and oxygen), is found throughout the universe. There is some water on most of the planets and satellites. In the outer solar system it is abundant, with many satellites made up of half water. However, most of this water is frozen as ice. Liquid water, which is thought to be essential for life, is much more rare. The most interesting sites for large quantities of liquid water are Mars and Europa, both of which are possible abodes of life.
March 24, 2003
![FAQ](https://webarchive.library.unt.edu/eot2008/20090825152000im_/http://astrobiology.nasa.gov/img/text/hd_faq.gif)
- How frequently are questions answered?
- I asked a question but there was no answer?
- Who is the Astrobiologist answering these questions?
- Will I get an email when my question is answered?
- What college courses should I take to become an astrobiologist?
- How can I get a job as an astrobiologist at NASA?
- Have aliens visited Earth? Are UFOs real?
- Is there a planet or brown dwarf called Nibiru or Eris that is approaching the Earth and threatening our planet with widespread destruction?
- Is it true that the Sun will be in the center of the Milky Way Galaxy in December 2012 and that this will cause a pole shift and massive destruction.
- Has NASA discovered life on other worlds?
- Astrobiology Career Path Suggestions