Sentences with phrase «earth on comets»

Such biomolecules or their precursors could have ridden to Earth on comets or asteroids to seed life on our planet — and possibly elsewhere.

Not exact matches

To rendezvous with comet 67P / Churyumov - Gerasimenko in 2007 — which it will crash into on September 30, 2016 — the Rosetta spacecraft needed a speed boost with the help of Earth's gravity.

Traveling at 27 miles per second (44 kilometers per second), the comet is headed away from the Earth and Sun on its way out of the solar sy... Read

Must be why all those loose asteroids, meteors and comets are still hanging around out there to end all life on Earth with a single wallop.

However, the Rosina mass spectrometer aboard Rosetta found that the ratio of deuterium to hydrogen in the comet is far greater than that found on Earth, adding to the growing body of evidence that the water on Earth was delivered not by comets, as previously thought, but by asteroids.

You mention global myths of a great flood as supporting evidence, but even the article only states,» [a] lmost every culture has a legend about a great flood, and — with a little reading between the lines — many of them mention something like a comet on a collision course with Earth just before the disaster.»

Anyone with a general knowledge of ELE's and comet / meteor impacts on earth could look at your argument in 5 seconds and dismiss it in 6.

Just think about the size of the comet that would have to create something like that, not to mention all the other consequences that would arise from a massive impact of that nature (namely destruction of almost all life on earth except for deep, deep sea creatures).

If we were in another galaxy or traveling on a speeding comet away from the earth we would think / claim the earth is a different age - and we would be RIGHT!

It ain't hard to tell, I excel then prevail The mic is contacted, I attract clientele My mic check is life or death, breathing a sniper's breath I exhale the yellow smoke of buddha through righteous steps Deep like the Shining, sparkle like a diamond Sneak a Uzi on the island in my army jacket lining Hit the Earth like a comet — invasion!

A flying drone to sniff out life on Titan and a spacecraft to return comet samples to Earth are finalists in NASA's search for its next interplanetary destination

The comet hasn't returned and may be on a parabolic orbit, in which case it won't pass by Earth again.

In the early 1970s, astronomers discovered that space was full of complex organic molecules, some of them forming part of the comets and meteorites that occasionally crash - land on Earth.

A dynamic simulation of that process, carried out by A'Hearn's colleague Kevin Walsh of Southwest Research Institute, sheds light on many long - standing puzzles about the solar system: not only where the Oort Cloud comets come from, but also why Mars is so small and airless com - pared with Earth.

Comets and asteroids both contain iridium, but comets would leave less iridium on the Earth and hardly any on the moon, compared with asteroids, says Jørgensen.

First, planetary scientists suspect that cyanide was abundant on early Earth, deposited here by comets or created in the atmosphere by ultraviolet light or by lightning (once the atmosphere became oxygen rich, 2.5 billion years ago, the process would have stopped).

On the walls there is a gorgeous painting of Halley's comet floating over Antarctica in 1986, along with a whimsical illustration of an Apollo - era astronaut on the moon, gazing at Earth and urinating in a graceful arc onto lunar soiOn the walls there is a gorgeous painting of Halley's comet floating over Antarctica in 1986, along with a whimsical illustration of an Apollo - era astronaut on the moon, gazing at Earth and urinating in a graceful arc onto lunar soion the moon, gazing at Earth and urinating in a graceful arc onto lunar soil.

During its travels, Jupiter flung swarms of those comets on paths that ran right into the still - forming Earth.

However, more - massive stars penetrating the Oort cloud in the distant past might have triggered major comet showers that pummelled the planets and led to some of the mass extinction events on Earth, says Mamajek.

The Pan-Starrs-1 telescope will scan the skies for asteroids and comets that could wipe out life on Earth.

Lab - grown comets and hydrothermal vents are helping scientists unravel life's strange origins on a young, sterile Earth.

Most researchers believe that the origin of life depended heavily on chemicals delivered to Earth by comets and meteorites.

Researchers Jan Kramers and Georgy Belyanin found mineral compounds unlike anything on Earth, or in known meteorites or comets, in these fragments from the Hypatia stone, which was picked up in south - west Egypt in the Libyan Desert Glass Field.

The Rosetta spacecraft has detected biological components glycine and phosphorus emerging from its comet - suggesting life on Earth could have arrived on a ball of ice

Rosetta's continuous orbit around comet 67P / Churyumov - Gerasimenko is helping scientists figure out how life began on Earth — and heralds a new age of comet science.

Because the Explorer was «very tenuously held by Earth,» says Farquhar, it was relatively easy to break that connection in 1982 and send the craft off on an unplanned mission — to fly through the tail of the comet Giacobini - Zinner.

NASA and the European Space Agency have launched probes that will visit comets, narrowing down the possible ingredients that might have been showered on early Earth.

Tons of comet detritus rains down on Earth every year.

The results could solve several puzzles about the composition of meteorites found on Earth and may explain why asteroids are different from comets.

«The comet only has a certain number of tries to get in close and either hit Earth or get scattered on to another orbit,» Raymond says.

For these reasons, confirmed comet impacts on the earth are so far unknown.

Most comets appear to follow that logic; their D / H ratio is typically about twice what has been measured on Earth.

Balancing boulders on Earth are either deposited by glaciers or carved by wind and water erosion — none of which exist on a comet.

Because comets contain material from when the sun and planets formed, Rosetta can answer questions about the evolution of the solar system and the origin of water (and possibly life) on Earth.

Although the consequences are roughly comparable in either case, an important difference is that objects in the solar system that circle far away from the sun on long - period orbits before returning, such as comets, would hit the earth at much greater velocities than close - orbiting (short - period) bodies, such as asteroids.

Rosetta was launched on 2 March 2004, and through a complex series of flybys — three times past Earth and once past Mars — set course to its destination: comet 67P / Churyumov - Gerasimenko.

Prematurely billed by the tabloids as the «killer comet» about to strike Earth, Hale - Bopp is fortunately not on a collision course with us.

The comet will reach its closest distance to the Sun on 13 August 2015 at about 185 million km, roughly between the orbits of Earth and Mars.

Water delivery via asteroids or comets is likely taking place in many other planetary systems, just as it happened on Earth, new research strongly suggests.

A persistent band of researchers has blamed this apparent disaster on the impact of a comet or asteroid, but a new study concludes that the real explanation for the chill, at least, may lie strictly with Earth - bound events.

Another group has conducted experiments suggesting that the water at these depths was formed on Earth rather than being delivered by comets and asteroids.

If other comets have oxygen, this glimpse into the early solar system's chemistry could help us piece together a record of conditions on early Earth, too.

Astrobiologists have long wondered whether they could have reached early Earth on the backs of comets or asteroids.

Radar data helped locate an approximate position for its final resting spot — somewhere just within the rim of the large crater on the head of the duck - shaped comet, what was once known as landing site «B.» Holger Sierks, principal investigator for the orbiter's camera, was waiting for images to be downloaded to Earth tonight that he thought would contain the lander.

Astrobiologists have long wondered whether they could have been delivered to early Earth on the backs of comets or asteroids.

More than 60 telescopes on Earth and in space watched the event, many of them also monitoring the comet in the weeks before and after the impact.

If that isotope ratio is similar to that in the water on Earth, it will support the idea that comets put it there.

Earth seems to have more water than models would suggest, and one theory is that early in its life, comets rained down on its surface, depositing water.

The Moon's water did not come from comets but was already present on Earth 4.5 billion years ago, when a giant collision sent material from Earth to form the Moon, new research shows.

It envisions the great reshuffling as a brief, violent affair that not only put the outer planets where they are today but also created the Kuiper belt of small icy bodies beyond Neptune, gave the planets scores of oddly orbiting moons, and bombarded the solar system with a rain of asteroids and comets so fierce that it would have cooked all but the deepest subterranean life on early Earth.