Sentences with phrase «evidence for life»

As scientists continue finding evidence for life in the ocean more than 3 billion years ago, those ancient fossils pose a paradox.

We still don't have solid evidence for live vaccines.

These «Apex chert microfossils» — between 0.5 and 20 micrometres wide — soon became enshrined in textbooks, museum displays, popular science books and online reference guides as the earliest evidence for life on Earth.

«If some good evidence for life after death were announced, I'd be eager to examine it; but it would have to be real, scientific data, not mere anecdote.»

Arguing that there is substantial evidence for life having begun through natural causes to me seems difficult because life can only arise from life.

Although we haven't found evidence for life on Mars, the hope remains.

The earliest evidence for living organisms dates back almost exactly to the time when the rain of asteroids ended.

And one day it may indeed provide conclusive evidence for life beyond Earth.

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.

New scientific methods for searching for the most ancient evidence for life on Earth have led to a leap forward in capabilities for biosignature detection.

«Even if one is not convinced that the Viking LR results give strong evidence for life on Mars, this paper clearly shows that the possibility must be considered,» says Chris McKay, PhD, Senior Editor of Astrobiology and an astrobiologist with NASA Ames Research Center, Moffett Field, CA.

Fossil stromatolites are the oldest evidence for life on Earth — they first appeared 3.7 billion years ago!»

«Ancient rocks hold evidence for life before oxygen.»

While researchers proclaim the first half of our 4.5 billion - year - old planet's life as an important time for the development and evolution of early bacteria, evidence for these life forms remains sparse including how they survived at a time when oxygen levels in the atmosphere were less than one - thousandth of one percent of what they are today.

This study suggests a degree of caution needs to be taken when reporting on the presence of molecules that could be interpreted as evidence for life.»

The lander would also use instruments to determine whether carbon stable isotope distribution is consistent with biological activity, to resolve and characterize microscale evidence for life in the samples it collects, to identify objects as small as one millimeter in the vehicle's workspace (and to do so in color), and to search for evidence of extant or fossil biology by determining the make - up of non-ice inorganic materials and minerals found near the surface, the report noted.

It could provide the first observational evidence for life beyond Earth.

There is more evidence for the life an teachings of Jesus Christ than most other personages outside of Italy, in the time period.

@bjnibbejr, «Arguing that there is substantial evidence for life having begun through natural causes to me seems difficult...»

By then, robots may even have found evidence for life on Mars or on one of the moons of Jupiter or Saturn.

And, as demonstrated by the recent retraction of evidence for life in a Mars meteorite, the stakes are astronomical.

Unencumbered by human frailties, Curiosity — like the rovers Spirit and Opportunity, which survived on the Red Planet years longer than expected — will be free to hunt for E.T. «If we find evidence for life on Mars, boy, are we just gonna go wild with speculation about how common it is in the universe,» says Lou Friedman, a former scientist with NASA's Jet Propulsion Laboratory in Pasadena and cofounder, with Carl Sagan, of the Planetary Society.

The evidence for life in the Martian meteorite has since been dismissed by many experts, and even if there are signs of life somewhere on Mars, the chances of a craft like the Polar Lander finding it are slim.

High heat flow is not necessarily indicative of volcanism (and extrapolating even further, evidence for life).

They believe that there is no evidence for life after death, and so humanists place a special value on this life and on making the best of it.

But for Khadyta River, the evidence for the living trees being unhealthy and possibly dying came from a site visit and clearly we can not visit the site 1000 years ago.

Evidence for a life - span theory of socioemotional selectivity.