VOA
Search
Menu
  • Archives
  • Contact
  • Science World
Science World

Tag: “Earth’s formation”

Scientists Find Traces of Early Earth in Volcanic Rock

May 13, 2016

According to most scientists, Earth was formed between 4.5 and 4.6 billion years ago after gravity forced gas and dust left over from the creation of the Sun accreted into an object called a planetesimal. Over time, the planetesimal continued to gather more and more material and eventually became a planet. Scientists say heat produced […]

Rosetta's NavCaM snapped this shot of Comet 67P/Churyumov-Gerasimenko on November 20, 2014 ((C) ESA/Rosetta/NAVCAM – CC BY-SA IGO 3.0)

Rosetta Mission Fuels Argument About Origin of Earth’s Water

December 12, 2014

The debate about the origin of Earth’s water just got deeper. The European Space Agency’s (ESA) comet-chasing spacecraft Rosetta has sent back some interesting information regarding water vapor it detected and analyzed on its target, Comet 67P/Churyumov-Gerasimenko. According to the ESA and an international group of scientists, the analysis shows that the chemical composition of […]

Top Tags

  • NASA262 Posts
  • astronomers103 Posts
  • ESA87 Posts
  • Mars86 Posts
  • study81 Posts
  • "European Space Agency"80 Posts
  • "solar system"77 Posts
  • spacecraft76 Posts
  • Sun63 Posts
  • JPL62 Posts
VOA
  • Archives
  • Contact
  • Science World