Sentences with phrase «primordial hydrogen»
"Primordial hydrogen" refers to the original or earliest form of hydrogen that existed during the early stages of the universe. It refers to hydrogen that was present during the Big Bang and hasn't undergone any changes or reactions since then. Full definition
Had this fireball been uniform in all directions, everything we see today would be completely homogeneous: There would be a perfectly uniform distribution throughout space of primordial hydrogen and helium, and cosmic microwave background radiation (CBR).
scientificamerican.com
Dark matter, which emits no light, forms the backbone of this web, which is also suffused with primordial hydrogen gas left over from the Big Bang.
During an era known as the «cosmic dawn,» the first stars were forged from primordial hydrogen and helium gas.
In the process, it would have attracted enough primordial hydrogen and helium gas to ignite the first stars.
Their atmospheric regime is unknown and could range from extended primordial hydrogen - dominated to depleted atmospheres3, 4,5,6.
Supernova explosions blew these heavier elements into interstellar space, where they mixed with clouds of primordial hydrogen and helium and were recycled into subsequent generations of stars.
Out of the primordial hydrogen and helium created in the Big Bang, clouds coalesced within 100 million years, eventually forming the first stars.
A team studying three galaxies that formed over 11 billion years ago observed them all sucking up cold, primordial hydrogen and helium gas from intergalactic space and churning out new stars in their central, star - making regions.
If TRAPPIST - 1h has also retained a primordial hydrogen - rich atmosphere, the rate of heat loss could be very low.
The Saturn - mass planets are presumably gas giants, made mostly of primordial hydrogen and helium, rather than the rocky material Earth is made of.