3 ms·

Also at 10% the speed of light the probe zips by the planet in a fraction of a second. There's no slowing down in this scenario.

by malz 10y ago

mrfusion 10y ago
Could they carry mini solar sails to slow down? Solar parachutes if you will. Or if we sent them in single file several seconds apart they could each relay what they see to the ones behind them and then back to us. Effective oh giving us a long exposure.
elektropionir 10y ago
There are ideas for slowing them down and even returning them back to Earth, at least in principle: http://www.centauri-dreams.org/?p=31913 http://www.centauri-dreams.org/?p=31913 Nothing that could be implemented in any foreseeable future though.
sevenless 10y ago
You can slow down - just that the probe won't remain intact. But perhaps that isn't necessary for the probe to be useful. We can also use these space probes to do geological and atmospheric surveys of the planet when they arrive. Simply: we slam the probe into the planet, a few milliseconds after it transmits the final images. One gram going at 20% of the speed of light has kinetic energy that bears comparison to the Hiroshima bomb. At a steep angle of entry, the huge entry glow will give a reading of the atmospheric molecular makeup. And if we can ionize some of the crust, massive space telescopes can get a spectroscopic measurement of the composition, four light years away.
- onion2k 10y ago
  Let's hope any alien race living there doesn't have the same idea and send a few probes to smash in to Earth.
  - sevenless 10y ago
    That would be like Christopher Columbus, mid-Atlantic crossing, encountering a gunpowder-equipped Mayan navy going off to conquer Europe. Not likely.
- saiya-jin 10y ago
  now that's a way to say Hi to a foreign species! there isn't high chance this wouldn't be considered as an act of hostility, and if they would check our history of our current world, they would probably just decide to erase this dangerous species from the face of the universe for greater common good.
  - sevenless 10y ago
    I think we both know humanity's interstellar destiny is to become the murderous alien invaders we've faced down in so many movies.

Also at 10% the speed of light the probe zips by the planet in a fraction of a second. There's no slowing down in this scenario.

by malz 10y ago

Also at 10% the speed of light the probe zips by the planet in a fraction of a second. There's no slowing down in this scenario.

mrfusion 10y ago

Could they carry mini solar sails to slow down? Solar parachutes if you will. Or if we sent them in single file several seconds apart they could each relay what they see to the ones behind them and then back to us. Effective oh giving us a long exposure.

elektropionir 10y ago

There are ideas for slowing them down and even returning them back to Earth, at least in principle: http://www.centauri-dreams.org/?p=31913 http://www.centauri-dreams.org/?p=31913 Nothing that could be implemented in any foreseeable future though.

sevenless 10y ago

You can slow down - just that the probe won't remain intact. But perhaps that isn't necessary for the probe to be useful. We can also use these space probes to do geological and atmospheric surveys of the planet when they arrive. Simply: we slam the probe into the planet, a few milliseconds after it transmits the final images. One gram going at 20% of the speed of light has kinetic energy that bears comparison to the Hiroshima bomb. At a steep angle of entry, the huge entry glow will give a reading of the atmospheric molecular makeup. And if we can ionize some of the crust, massive space telescopes can get a spectroscopic measurement of the composition, four light years away.

onion2k 10y ago
Let's hope any alien race living there doesn't have the same idea and send a few probes to smash in to Earth.
- sevenless 10y ago
  That would be like Christopher Columbus, mid-Atlantic crossing, encountering a gunpowder-equipped Mayan navy going off to conquer Europe. Not likely.
saiya-jin 10y ago
now that's a way to say Hi to a foreign species! there isn't high chance this wouldn't be considered as an act of hostility, and if they would check our history of our current world, they would probably just decide to erase this dangerous species from the face of the universe for greater common good.
- sevenless 10y ago
  I think we both know humanity's interstellar destiny is to become the murderous alien invaders we've faced down in so many movies.