Tag Archives: Earth

  Astronauts may struggle to reproduce in outer space, study suggests — what does that mean for the future of space colonization? A new study found that microgravity simulated on Earth hindered sperm cell movement, egg fertilization and embryo development ‪—‬ findings that have serious implications for the future of space colonization.

  Most of the Earth’s history has been uncovered through research into what is known as the fossil record. Because of this research, scientists have been able to piece together the evolutionary tree as well as the evolution of the Earth itself. All of the species on this have ancestors whose fossils date back over hundreds of million years ago. ...