Sentences with phrase «signature of life»

NExSS will help lay the groundwork for answering important questions about how to search for signatures of life on distant worlds using existing technology.

Gaia's founding scientist James Lovelock formulated Gaia theory while working for NASA seeking chemical signatures of life on other planets.

Sagan and his colleagues used that to test a key question: Whether spacecraft could detect signatures of life from afar.

The proposed telescope will be able to detect signatures of life on planets outside our own Solar System, and begin to address the issue of whether life is ubiquitous.»

«What kinds of molecules provide the best signature of life?

«I hope this database will help increase interest in building a big space - based telescope to observe exoplanets directly and look for possible signatures of life,» said Jim Kasting, an expert on planetary habitability science from Penn State.

In order to come up with an answer that's going to convince a lot of people, we'll need to find a place where we can widely agree, «Yeah, these are signatures of life as we fairly closely understand it.»

«What we've been able to show is how the tell - tale signature of life is erased as the energetic radiation smashes up the cells» molecules,» said Dartnell.

«We were able to show that due to its metal oxidizing metabolic activity, when given an access to these Martian regolith simulants, M. sedula actively colonizes them, releases soluble metal ions into the leachate solution and alters their mineral surface leaving behind specific signatures of life, a «fingerprint», so to say,» explains Milojevic.

«Adding neodymium changed that picture and gave us an independent measure of the amount coming from shallow continental waters that carried an isotopic signature of life.»

«However, our research strengthens the argument that methane and oxygen together, or methane and ozone together, are still strong signatures of life,» said Domagal - Goldman.

And no matter how many times Dorn repeated the experiment, the same signature of life appeared.

Urine that it vented also left a residue when tiny particles hit the craft's panels, so Lorenz suggests that future missions to Enceladus could look for signatures of life if similar residue is found in the minuscule dents left on a detector by ice grains from the plumes.

Signatures of life activities of a living organism are called «biomarker».

Scientists could look at the plume's chemistry in more detail, searching for the molecular signatures of life in the subsurface ocean; in other words, we would let the ocean come to us.

Better understanding how signatures of life and environment are preserved will guide how and where to look for evidence for life elsewhere in the universe — directly supporting the Curiosity mission on Mars and helping set strategic goals for future explorations of solar system and studies of the early Earth.

This milestone will inevitably spark another revolution, as observers redouble their efforts to see Earth - like worlds directly and probe their atmospheres for the telltale chemical signatures of life.

«Today... Kepler may well deliver the first candidates for follow - up study by the James Webb Space Telescope to characterize the atmospheres of distant worlds and search for signatures of life.»

This mixture of gases may be a better signature of life than oxygen, which was fairly scarce for most of Earth's history, the researchers argue this week in Science Advances.

Over the past 25 years the 50 - year - old Detroit businessman has amassed more than 100,000 autographs, signed photos and personal letters — including the signatures of every living Hall of Famer in baseball, football, basketball, hockey, golf, track and field, swimming, bowling and even softball — simply by writing gracious letters to athletes and asking for their cooperation.

Called the Terrestrial Planet Finder, it would study the atmospheres of exoplanets and search for the chemical signatures of life: oxygen, water vapor, carbon dioxide.

«This helps us theorize not only about early life on Earth but also about the signatures of life that we might find on other planets,» said Fakhraee.

Both next - gen telescopes will help us get to know exoplanets even better, perhaps even detecting the signatures of life — if it exists.

While his celebrated colleagues design ever more inventive spaceships and robots to scour the surface of Mars for some signature of life, Venkateswaran quietly examines the machinery itself, searching for any clever microbes — «bugs,» he calls them — that might try to tag along.

JWST will examine exoplanet atmospheres for signatures of life, which is only possible when their stars are relatively close.

Since Viking, though, NASA has mostly played it safe, scouring Mars's surface not for the chemical signatures of life but for ancient habitable environments — the goal of the Curiosity rover.

As we are now entering a stage of astronomy where we have seen exoplanets and are hoping to soon perform spectroscopy, looking for signatures of life, we should try to see just how fragile this hardiest life is.

I'm also hopeful that future Mars probes, digging under the planet's surface, might be lucky enough to uncover fossil life or chemical signatures of life.

It's one of the tools JWST will use to capture sight of distant planets passing in front of stars, then analyze the data to be able to identify worlds where the signatures of life, like water and methane, are present.

Here, she speaks about the search for those faraway worlds and signatures of life.

What are the signatures of life astronomers should look for when they scan the heavens for habitable worlds?

Thus there is a need to understand how the most primitive braches of life's phylogenetic tree (the extremophiles in hot springs) became fossilised and incorporated into the geological record, as these chemical signatures of life may be the best evidence that life on Mars once existed.

The off - axis telescope has several scientific targets, including atmospheres of planets in the solar system, atmospheres of exoplanets, protoplanets being born, and biosignatures (chemical signatures of life) on potentially habitable exoplanets.

Rivkina, E., K. Laurinavichius, J. McGrath, J. Tiedje, V. Shcherbakova, and D. Gilichinsky, Microbial life in permafrost, in Space Life Sciences: Search for Signatures of Life, and Space Flight Environmental Effects on the Nervous System, pp. 1215 - 1221, 2004.