Finding Life Beyond Earth is Within Reach - NASA
2014年7月14日 · The Webb telescope and WFIRST-AFTA will lay the groundwork, and future missions will extend the search for oceans in the form of atmospheric water vapor and for life as in carbon dioxide and other atmospheric chemicals, on nearby planets that are similar to Earth in size and mass, a key step in the search for life.
NASA Is Taking a New Look at Searching for Life Beyond Earth
2018年9月25日 · From studying water on Mars, probing promising “oceans worlds” such as Europa or Saturn’s moon Enceladus, to looking for biosignatures in the atmospheres of exoplanets, NASA’s science missions are working together with a goal to find unmistakable signs of life beyond Earth.
Are We Alone? - NASA Science
Observations from the ground and from space have confirmed thousands of planets beyond our solar system. Our galaxy likely holds trillions. But so far, we have no evidence of life beyond Earth. Is life in the cosmos easily begun, and commonplace? Or is it incredibly rare? How big is the Milky Way galaxy?
Can We Find Life? - NASA Science
So far, the only life we know of is right here on planet Earth. But NASA is looking for signs of life in our solar system and on some of the the thousands of planets we've discovered beyond it, on exoplanets. We can probe alien atmospheres for biosignatures, which could indicate life below.
Life in the Universe: What are the Odds? - NASA Science
2021年3月9日 · We don't know when, or even if, we'll find life beyond Earth, but NASA scientists continue the hunt among the thousands of exoplanets confirmed in the galaxy so far.
Why there might be life out there unlike any on Earth
2023年6月6日 · Imagine the possibility of life forms on other planets that don’t resemble any on Earth. What might they look like, and why would they be so different? Juan Pérez-Mercader says it may be possible and the answer may be that they developed from a different type of chemistry.
Explore where the search for life is unfolding across the solar ... - CNN
Mars and ice-covered ocean moons orbiting Jupiter and Saturn are intriguing destinations in the search for life outside of Earth.
Our Living Planet Shapes the Search for Life Beyond Earth
2017年11月15日 · By observing how the brightness of Earth changes when mostly land is in view compared with mostly water, Kane has been able to reverse-engineer Earth's rotation rate -- something that has yet to be measured directly for exoplanets. When Will We Find Life? Every scientist involved in the search for life is convinced it's out there.
Astrobiology - The Hunt for Life Beyond Earth - National Geographic
If you can figure out how to isolate and identify life-forms that thrive in similarly extreme surroundings on Earth, you're a step ahead in searching for life elsewhere.
Life beyond Earth: A universe of possibilities
2022年9月28日 · While we still only know about life on Earth, there may be multiple scenarios – both in our solar system and far beyond – in which living organisms could originate and evolve.