their lifetimes are too short
Planets located in the habitable zone of their star (where liquid water can exist), planets with rocky compositions, planets orbiting stable stars, and planets with atmospheres that could support life would be the best candidates to search for extraterrestrial life.
Mars and Europa both have evidence of liquid water, which is essential for life as we know it. Water is a critical factor in supporting life because it provides a medium for chemical reactions necessary for living organisms. This similarity to Earth makes them potential candidates to support extraterrestrial life.
A lot of people, mostly scientists, claim to have proof of extraterrestrial life. They feel their theories are plausible. However, the subject of extraterrestrial life is debatable. There is no official proof.
Extraterrestrial life.
extraterrestrial or not http://henadzifilipenka.blogspot.com
Extraterrestrial is an adjective, meaning not of this Earth.
The Unexplained - 1996 Extraterrestrial Life was released on: USA: 1997
Xenobiology is the speculative Biology of extraterrestrial life forms.
Xenobiology is the speculative Biology of extraterrestrial life forms.
A life on another planet
Not yet
No.