New Mars Forums
You are not logged in.
- Topics: Active | Unanswered
Announcement
#51 2016-12-08 13:15:51
- elderflower
- Member
- Registered: 2016-06-19
- Posts: 1,262
Re: Past and Present life on Mars
There seems to be a distinct danger that we shall never find out about Mars life as we shan't be allowed to go because we might contaminate Mars, so threatening putative Mars organisms with Earth organisms.
This view ignores the exchange of meteorites between the two bodies over the past three and a half billion years or so.
Offline
Like button can go here
#52 2016-12-08 15:51:04
- Oldfart1939
- Member
- Registered: 2016-11-26
- Posts: 2,455
Re: Past and Present life on Mars
BITD, that view was only held by extreme "Ecofreaks." It's now become a bit more popular, but remains irrational.
Offline
Like button can go here
#53 2017-03-02 10:02:16
- Tmcom
- Member
- Registered: 2017-03-02
- Posts: 840
Re: Past and Present life on Mars
My first post here, interesting threads.
Offline
Like button can go here
#54 2022-09-14 10:35:57
- Mars_B4_Moon
- Member
- Registered: 2006-03-23
- Posts: 9,776
Re: Past and Present life on Mars
Are earthlings alone in the universe? JPL’s new director wants to find out
https://www.kcrw.com/news/shows/greater … osity-mars
Scientists propose Ceres sample return mission
https://www.spaceflightinsider.com/miss … n-mission/
Panspermia is the hypothesis, first proposed in the 5th century BC by the Greek philosopher Anaxagoras, that life exists throughout the Universe, distributed by space dust, meteoroids, asteroids, comets, and planetoids, as well as by spacecraft carrying unintended contamination by microorganisms.
Offline
Like button can go here
#55 2023-08-16 02:37:58
- Calliban
- Member
- From: Northern England, UK
- Registered: 2019-08-18
- Posts: 3,811
Re: Past and Present life on Mars
The latest video from Anton Petrov is very interesting.
https://m.youtube.com/watch?v=rMViRJPqUkM
Something on Mars is generating complex organic molecules. These are rapidly destroyed by the highly oxidising conditions on Mars. Their existance can only be explained by some mechanism that continuously replenishes them.
"Plan and prepare for every possibility, and you will never act. It is nobler to have courage as we stumble into half the things we fear than to analyse every possible obstacle and begin nothing. Great things are achieved by embracing great dangers."
Offline
Like button can go here
#56 2023-10-25 12:41:29
- Mars_B4_Moon
- Member
- Registered: 2006-03-23
- Posts: 9,776
Re: Past and Present life on Mars
If the Perseverance rover found evidence of life on Mars, would we recognize it?
https://www.space.com/perseverance-rove … -difficult
Offline
Like button can go here
#57 2023-12-01 11:46:10
- Mars_B4_Moon
- Member
- Registered: 2006-03-23
- Posts: 9,776
Re: Past and Present life on Mars
Was There Life on Mars
Offline
Like button can go here
#58 2023-12-20 18:29:18
- SpaceNut
- Administrator
- From: New Hampshire
- Registered: 2004-07-22
- Posts: 29,436
Re: Past and Present life on Mars
Offline
Like button can go here
#59 2024-05-06 10:05:55
- GW Johnson
- Member
- From: McGregor, Texas USA
- Registered: 2011-12-04
- Posts: 5,811
- Website
Re: Past and Present life on Mars
From AIAA’s “Daily Launch” for 6 May 2024
SPACE
Long ago, a lake on Mars might have been sprawling with microbes
The Curiosity Mars rover has detected intriguing chemical evidence, in the form of anomalous amounts of manganese oxide, which points to Mars having had not only a habitable environment billions of years ago, but also one possibly inhabited by microbes.
Title leads to Space.com, for full article
Gist: excess mag oxide concentration found in lake sediments similar to deposits on Earth that require oxygen in the water. On Earth, that oxygen comes from life.
GW
GW Johnson
McGregor, Texas
"There is nothing as expensive as a dead crew, especially one dead from a bad management decision"
Offline
Like button can go here