logo

THIS IS THE NEW SERVER - WE ARE STILL TWEAKING IT
Channel List
Beauty & Self
Books & Music
Career
Computers
Education
Family
Food & Wine
Health & Fitness
Hobbies & Crafts
Home & Garden
Money
News & Politics
Relationships
Religion & Spirituality
Sports
Travel & Culture
TV & Movies
Safety
We take forum safety very seriously here at BellaOnline. Please be sure to read through our Forum Guidelines. Let us know if you have any questions or comments!
Newest Members
silkfabric1999, ginamercedez, Kareen122, Whoundle42, knotty lace kid
58067 Registered Users
Forum Stats
58,067 Registered Members
417 Forums
117,015 Topics
832,129 Posts

Most users ever online: 615 @ 04/22/15 10:11 AM
Top Posters (30 Days)
Nancy Roussy 323
Mona - Astronomy 96
Connie - ADD/Sandwiches 81
Lisa LowCarb / VideoGames 58
"Rosie" 48
Deanna - New Age 40
Digital Art and Animation 38
Angie 26
Angela - Drama Movies 23
Michelle - Teen & Reading Editor 22
Ad Income Supports Charity
Topic Options
#802070 - 01/22/13 09:06 AM Last signal from Pioneer 10 - January 22, 2003
Mona - Astronomy Offline
BellaOnline Editor
Elephant

Registered: 05/01/10
Posts: 4469
Loc: United Kingdom
Pioneer 10, launched March 2, 1972, was a true pioneer. The first spacecraft to cross the asteroid belt, first to complete a mission to Jupiter and first to send information about the distant regions of the Solar System. Its last message came home on January 22, 2003 on its way out of the Solar System towards Taurus.

Ten years later it's ten billion miles away from the Sun. A ray of sunlight takes nearly fifteen hours to reach it!
_________________________
Mona Evans
For news, activities, pictures and more, sign up to the Astronomy Newsletter!

http://www.bellaonline.com/newsletter/astronomy

Top
#802364 - 01/24/13 03:27 AM Re: Last signal from Pioneer 10 - January 22, 2003 [Re: Mona - Astronomy]
Mona - Astronomy Offline
BellaOnline Editor
Elephant

Registered: 05/01/10
Posts: 4469
Loc: United Kingdom
Pioneer 10 and Pioneer 11 both carried information plaques devised by Carl Sagan and Frank Drake.



It assumes that an intelligent space-faring race could use their own scientific knowledge to work out where the message came from. Some people felt this was irresponsible, but it just seemed like a grand gesture to me. Even now Pioneer 10 is around 100,000 years away from our very nearest star, not to mention being a tiny object in a very large space.
_________________________
Mona Evans
For news, activities, pictures and more, sign up to the Astronomy Newsletter!

http://www.bellaonline.com/newsletter/astronomy

Top
#802813 - 01/26/13 07:37 AM The Pioneer mystery [Re: Mona - Astronomy]
Mona - Astronomy Offline
BellaOnline Editor
Elephant

Registered: 05/01/10
Posts: 4469
Loc: United Kingdom
Both Pioneer 10 and its sister probe Pioneer 11 have gone more slowly than they should - it's a teensy, but measurable, amount of slowing that couldn't be accounted for. It's spawned all sorts of explanatory theories, many of them quite daft.

Finally, someone searched out the old data, which is in formats no longer in use. So that meant finding old equipment to play them and then transferring the data to a current format in order to analyze it.

When they did, they finally concluded that the miniscule slowing resulted from the heat radiation of the probes pushing against them and slowing them down. So probably no new exotic physics and no aliens involved.

More detail at Mystery Tug on Pioneer 10 and 11.


Edited by Mona - Astronomy (01/26/13 07:39 AM)
_________________________
Mona Evans
For news, activities, pictures and more, sign up to the Astronomy Newsletter!

http://www.bellaonline.com/newsletter/astronomy

Top

Moderator:  Mona - Astronomy 

Want to reply? Register as a Forum Member - it's quick, free and fun!
Brand New Posts
What Did You Write Today?
by Lisa LowCarb / VideoGames
Fiction Writing
5 seconds ago
Two Lucky Men
by Vance - Crime/History Ed.
Crime
Today at 08:46 AM
Rosie the Riveter
by Vance - Crime/History Ed.
History
Today at 07:20 AM
Japanese Needle Tatting
by Georgia, AK Tatter
Tatting
Today at 05:21 AM
Spiritual Quotes
by Debbie-SpiritualityEditor
Spirituality
Today at 05:01 AM
favorite genre's
by Nancy Roussy
Manga / Comics
Today at 04:05 AM
Comics for Kids
by Nancy Roussy
Manga / Comics
Today at 02:44 AM
Where are you and how is the weather?
by Nancy Roussy
Inspiration
Yesterday at 11:28 PM
What will you do today?
by Nancy Roussy
Inspiration
Yesterday at 11:27 PM
What's your Typical Daily Menu?
by Nancy Roussy
Low Carb
Yesterday at 11:24 PM
Register to Post!
Want to post? For security reasons you need to Register as a Forum Member. It's quick, easy and free!
Forum Activities
Book Clubs
Trivia Contests
Who's Online
1 registered (Lisa LowCarb / VideoGames), 77 Guests and 3 Spiders online.
Key: Admin, Global Mod, Mod
Ad Income Supports Charity



| About BellaOnline | Privacy Policy | Advertising | Become an Editor |
Website copyright © 2015 Minerva WebWorks LLC. All rights reserved.