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
Karencraw, MaureenDay, jennlorrane, StarzIntern, cos
57648 Registered Users
Forum Stats
57,648 Registered Members
417 Forums
114,794 Topics
815,451 Posts

Most users ever online: 615 @ 04/22/15 10:11 AM
Top Posters (30 Days)
Nancy Roussy 350
"Rosie" 326
Jana - Creativity Editor 275
daisybun 252
Connie - ADD/Sandwiches 177
Deanna - New Age 137
Mona - Astronomy 110
Susan - Meditation Editor 78
Elleise - Clairvoyance 48
Alice - Weight Loss 42
Ad Income Supports Charity
Topic Options
#802070 - 01/22/13 09:06 AM Last signal from Pioneer 10 - January 22, 2003
Mona - Astronomy Online   content
BellaOnline Editor
Koala

Registered: 05/01/10
Posts: 2769
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 Online   content
BellaOnline Editor
Koala

Registered: 05/01/10
Posts: 2769
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 Online   content
BellaOnline Editor
Koala

Registered: 05/01/10
Posts: 2769
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
Earthshine *new article*
by Mona - Astronomy
Astronomy
1 second ago
Where are you and how is the weather?
by Gordon Barlow
Inspiration
Today at 05:57 AM
Daily World Peace Group Meditation
by Susan - Meditation Editor
Meditation
Today at 05:52 AM
Does anyone else exercise at home?
by BB -Body Care
Body Image
Today at 04:32 AM
Guide to Staying Cool
by BB -Body Care
Body Care
Today at 04:26 AM
What exercise did you do today?
by BB -Body Care
Exercise
Today at 04:23 AM
Olay Fresh Outlast White Strawberry & Mint Review
by BB -Body Care
Body Care
Today at 04:20 AM
When to stay, when to go?
by MissDreamer
Dating
Today at 02:10 AM
Watching loved one get tortured
by MissDreamer
Dreams
Today at 01:26 AM
Your Jewelry Collection
by Nancy Roussy
Fashion Jewelry
Yesterday at 10:10 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
2 registered (Izeigo, Mona - Astronomy), 62 Guests and 5 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.