Sentences with phrase «primordial asteroid»
Given the angle of this family's V - shaped leg, they estimate this primordial asteroid family is 4 billion years old.
https://www.pbs.org/
The resulting paper, «Identification of a primordial asteroid family constrains the original planetesimal population,» appears in the August 3, 2017, online edition of Science.
Identification of a primordial asteroid family constrains the original planetesimals population.
The team plans to apply this new technique to the entire asteroid belt to reveal more about the history of the solar system by identifying the primordial asteroids versus fragments of collisions.
«Primordial asteroids discovered: Discoveries include a void in the main belt and the oldest family of asteroids.»
Marchi's team proposes a novel, more efficient mechanism As the planet was pummeled by primordial asteroids — some larger than 100 kilometers in diameter — impacts would melt large volumes of rock, creating temporary lakes of lava.
Located in the constellation of Sagittarius, the primordial asteroids were found after a detailed survey using the Hubble Space Telescope.
Not exact matches
Other asteroids like Bennu may have seeded the early, prebiotic Earth with this material, contributing to the primordial soup from which life eventually emerged.
It's a carbonaceous asteroid, meaning it's made of a mixture of rock, organic compounds and water - rich minerals thought to mirror the make - up of the primordial nebula from which our solar system first condensed.
Mars, on the other hand, is thought to have been shaped mostly during the period of primordial accretion and the so - called Late Heavy Bombardment, when asteroids carved out massive impact basins and pushed up huge volcanoes.
According to Hawking's theory, numerous tiny primordial black holes, possibly with a mass equal to that of an asteroid or less, might have been created during the big bang, a state of extremely high temperatures and density in which the universe is thought to have originated 13.8 billion years ago.
But whether a comet or an asteroid clumps together from the primordial material depends on the proximity to its star.
The cause of the heating can not be long - lived radioisotopes; given the primordial concentrations of the isotopes and the expected rate of heat loss, calculations show that the radioactive decay could not have melted Vesta or any other asteroid.