Sentences with phrase «alien astronomers»
The phrase "alien astronomers" refers to scientists from other planets or extraterrestrial beings who study the stars and space. Full definition
Simple chemistry shows these gases should not co-exist for long, and yet on Earth they do, offering a clear sign for any watchful alien astronomers that something lives and breathes on this particular pale blue dot.
scientificamerican.com
To spot the tint of Earth, alien astronomers from Andromeda might measure light shimmering off the surface of a planet, as sunlight reflected from our planet's vegetation reaches their telescopes.
Alien astronomers in a galaxy 100 million light - years away would see us whizzing in the opposite direction at 1,400 miles per second.
Six billion years from now, alien astronomers studying the rocky remains around our burned out sun might reach the same conclusion: terrestrial planets once circled our parent star.
As he peered into a huge, superluminous galaxy, he wondered: What if an alien astronomer there were staring right back?
Most SETI projects tune in to the 1.42 to 1.72 - gigahertz range, reasoning that alien astronomers might expect earthly scientists to be looking there anyway as this is the frequency of radiation emitted by interstellar hydrogen and hydroxyl clouds.
Funny thing is, in a few billion years time, alien astronomers may be looking at the dusty remains of our planet drifting around our dead, white dwarf sun.