Sentences with phrase «delivered by asteroid»

Russia's moon exploration program sees potential for minerals delivered by asteroid impact.

Not exact matches

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.
That's because they may have been created by an exploding star and delivered to Earth by an asteroid billions of years ago.
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 that idea is correct, then it implies that the moon's water is mostly ancient — contrary to scientists who have argued that water was delivered more recently by asteroid impacts or even produced by a hail of protons known as the solar wind.
The leading hypothesis is that it was delivered by water - rich comet or asteroid impacts.
For Delbo's part, he dreams of tying his discoveries of the asteroid belt to the piece of Bennu due to be delivered by OSIRIS - REx.
Therefore, most of the gold that is present today in the Earth's crust and mantle is thought to have been delivered to Earth later, by asteroid impacts during the late heavy bombardment, about 4 billion years ago.
These cosmic impacts are also the key mechanism with which life, or at least its chemical building blocks, are delivered between worlds, according to the panspermia hypothesis which posits that the seeds of life are common throughout the Universe and can be spread from planet to planet by cometary and asteroid impacts.
These gas - laden fullerenes were formed outside the Solar System, and their concentration in the sedimentary layer at the boundary of the Permian and Triassic periods means they were delivered by comets or asteroids.
It's the same issue raised by people arguing against blowing up an asteroid, that it turns a single small cannonball into a very large shotgun blast with the same total energy being delivered and delivering it to the atmosphere is still a problem.
a b c d e f g h i j k l m n o p q r s t u v w x y z