WASHINGTON: The “creation of life” on Earth, according to some scientists, may have started shortly after the late heavy bombardment, or the massive rain of comets and asteroids in the inner Solar System.Massive rocks landed on Earth 4 to 3.8 billion years ago, and these heavenly objects may have delivered much of the water in our planet’s oceans. According to a popular theory, these objects came from a place beyond Pluto, or what scientists call the “Kuiper Belt”.The late heavy bombardment theory, also known as lunar cataclysm, is based on the data from the moon — and these samples were brought back by the Apollo astronauts.But one new study suggests that life on Earth may have begun earlier, even before the late heavy bombardment.A research by UCLA Geochemists published Monday in the journal Proceedings of the National Academy of Sciences revealed that life on this lush planet have emerged 4.1 billion years ago, shortly before, or possibly during the late heavy bombardment. (Or it is also possible that the late heavy bombardment started millions of years earlier than was previously thought).Scientists discovered the evidence in particles of graphite trapped inside an old zircon crystal in Australia.
Karachi Port sets 138-year cargo handling record
KARACHI: Pakistan's maritime sector has achieved a major milestone as Karachi Port set a new record in its 138-year history...
