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

Tag: “space environment”

This is an enhanced-color image of Mecury taken during NASA’s MESSENGER mission in 2015. (NASA/JHU Applied Physics Lab / Carnegie Inst. Washington)

Calculations Show Mercury Has a Thin but Dense Crust

May 1, 2018

Mercury is the closest planet to the Sun, and very little is really known about this hot rocky orb. So far, only two space probes have ever studied Mercury. NASA’s Mariner 10 flew past the planet three times between 1973 and 1974. The flybys allowed scientists to map about half the planet, discover its thin […]

Delta 2nd Stage Stainless Steel Cylindrical Propellant Tank; landed in Georgetown, TX (Photo: NASA Orbital Debris Program Office)

Space Junk Jeopardizes Earth’s Space Environment

April 24, 2017

Scientists estimate that there are some 750,000 pieces of space junk circling Earth, millions more if you count fragments smaller than 1 centimeter. Think about it: Mankind has sent thousands of rockets into space since the launch of the first satellite, Sputnik 1, in 1957. While a number of space vehicles are still in active […]

Artist illustration of events on the sun changing the conditions in Near-Earth space which can generate geomagnetic storms. These storms can interupt radar, radio communications and electrical grids on Earth. (NASA)

The Day Geoscience Saved the World From Possible Armageddon

August 12, 2016

In the late 1960s, U.S. military action that would likely have led to nuclear Armageddon was averted, thanks to wary officers who looked for explanations other than Soviet aggression when warning systems suggested otherwise. A new study by three retired U.S. Air Force officers and researchers at the University of Colorado, Boulder, details the events […]

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