Gee Whiz Facts
back from deep space is collected by large radio dish antennae receiving
signal strength power levels of less than one millionth of one billionth
of one watt.
A U.S. astronaut´s
space suit typically costs 15 million dollars, including maintenance.
of neutron star material would weigh 10 billion tons.
elements in your body came from the explosions of supernovae.
There are over
a trillion galaxies in the known universe, each having over 200 billion
robotic spacecraft used the gravity assist slingshot effect from Jupiter
to gain 35,700 mph relative to the sun, while slowing massive Jupiter
by only 1 foot per trillion years.
The first rockets
were made by the Chinese 1,000 years ago.
The 25 billion
dollar cost of the Apollo moon program could have funded ten robotic
missions to each of the planets in our solar system.
The best bet
for possible extraterrestrial life in our solar system, probably only
microbial, is on Mars, with more remote chances in the colder outer
solar system on Europa, Enceladus, or Titan.
a density lower than that of water ... and thus could float in a huge
suggests there are millions of planets
in our own galaxy that likely support some forms of life, with perhaps
several of these being advanced civilizations.
to Earth from 12 weeks of weightlessness in space, an astronaut is typically
2 inches taller for a short period before returning to his normal height.
spacecraft has traveled 13.6 billion miles since launch in 1977, and
is now (2010) the most distant manmade object at 2.5 times farther away
pass through your body every second,
even passing right through the entire Earth with ease.