PDA

View Full Version : Galileo + Jupiter dive = Info please?



Padawan
2004-Apr-14, 09:04 PM
A while ago the Galileo probe plunged into the atmosphere of Jupiter, would anyone know if there has been any results published yet?

Jason Thompson
2004-Apr-14, 09:23 PM
There are no results to publish. Galileo was put into a dive into Jupiter's atmosphere for the purpose of destroying it and avoiding contamination of the Jovian moons. It had reached the end of its useful life and they did not want to leave it drifting in the Jovian system.

Jigsaw
2004-Apr-14, 09:26 PM
Other than the Black Spot, (http://www.space.com/scienceastronomy/jupiter_dark_spot_031023.html) which the BA says wasn't due to Galileo (http://www.badastronomy.com/bad/misc/c2c_nov2003.html), I hadn't heard anything.

Kaptain K
2004-Apr-14, 09:34 PM
There was no telemetry during the final plunge into the atmosphere (not possible due to the low data rate of the low gain antenna).

Bob
2004-Apr-14, 11:07 PM
The final plunge into the atmosphere , on Sep 21, 2003, was on the far side of Jupiter so no line of sight data transmission was possible. Some telemetry, such as an optical search for rocky debris in te orbit of Amalthea, was planned before transmission was interrupted.

Brady Yoon
2004-Apr-15, 12:13 AM
How would the spacecraft contaminate the moons?

freddo
2004-Apr-15, 12:53 AM
Because it was not a lander, and was kind of old - it didn't go through the same decontamination processes as say, a Mars Rover. Galileo was running out of fuel and would soon be orbiting uncontrolled around Jupiter. With the discovery that Europa has what could probably be called a decent shot at life existing on it, the very small chance that Galileo could crash into Europa (or the other moons) at a future date was deemed too great a risk. Thus, the remaining fuel was used to smack the probe into Jupiter itself.

Nereid
2004-Apr-15, 01:34 AM
And we know - from a piece of a Surveyor craft/lander brought back by an Apollo astronaut? - that at least some bacteria from Earth can survive, in some part of a spacecraft in space, for quite a long time. We know that a bacterium may survive a quite violent - how violent? - crash, perhaps even a spacecraft like Galileo onto a moon like Europa.

Not worth taking the (very) small risk of contamination.

Mr. Milton Banana
2004-Apr-15, 05:49 AM
Go here to get more info:

http://galileo.jpl.nasa.gov/

8)